- Expanded NonStackingAttachEffects (A-H).

res/cardsfolder/a/animal_boneyard.txt

@@ -7,5 +7,6 @@ S:Mode$ Continuous | Affected$ Land.AttachedBy | AddAbility$ GainLife | AddSVar$
 SVar:GainLife:AB$GainLife | Cost$ T Sac<1/Creature> | LifeAmount$ AnimalBoneyardX | SpellDescription$ You gain life equal to the sacrificed creature's toughness.
 SVar:AnimalBoneyardX:Sacrificed$CardToughness
 SVar:RemAIDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/animal_boneyard.jpg
 Oracle:Enchant land\nEnchanted land has "{T}, Sacrifice a creature: You gain life equal to that creature's toughness."

res/cardsfolder/a/archery_training.txt

@@ -10,6 +10,6 @@ SVar:ArcheryDamage:AB$ Pump | Cost$ T | ImprintCards$ OriginalHost | SubAbility$
 SVar:DBArcheryDamage:DB$ DealDamage | ValidTgts$ Creature.attacking,Creature.blocking | TgtPrompt$ Select target attacking or blocking creature | NumDmg$ ArcheryX | SubAbility$ DBArcheryCleanup
 SVar:ArcheryX:Count$TotalCounters_ARROW_Card.IsImprinted+namedArchery Training
 SVar:DBArcheryCleanup:DB$ Pump | ForgetLastImprinted$ True
-SVar:RemAIDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/archery_training.jpg
 Oracle:Enchant creature\nAt the beginning of your upkeep, you may put an arrow counter on Archery Training.\nEnchanted creature has "{T}: This creature deals X damage to target attacking or blocking creature, where X is the number of arrow counters on Archery Training."

res/cardsfolder/b/barbed_field.txt

@@ -5,5 +5,6 @@ K:Enchant land
 A:SP$ Attach | Cost$ 2 R R | ValidTgts$ Land | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Land.EnchantedBy | AddAbility$ Damage | Description$ Enchanted land has "tap: This land deals 1 damage to target creature or player."
 SVar:Damage:AB$DealDamage | Cost$ T | ValidTgts$ Creature,Player | TgtPrompt$ Select target creature or player | NumDmg$ 1 | SpellDescription$ CARDNAME deals 1 damage to target creature or player.
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/barbed_field.jpg
 Oracle:Enchant land\nEnchanted land has "{T}: This land deals 1 damage to target creature or player."

res/cardsfolder/b/blessing_of_leeches.txt

@@ -7,6 +7,7 @@ A:SP$ Attach | Cost$ 2 B | ValidTgts$ Creature | AILogic$ Pump
 A:AB$ Regenerate | Cost$ 0 | Defined$ Enchanted | SpellDescription$ Regenerate enchanted creature.
 T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigLoseLife | TriggerDescription$ At the beginning of your upkeep, you lose 1 life.
 SVar:TrigLoseLife:AB$LoseLife | Cost$ 0 | Defined$ You | LifeAmount$ 1
-SVar:RemRandomDeck:True
+SVar:RemAIDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/blessing_of_leeches.jpg
 Oracle:Flash\nEnchant creature\nAt the beginning of your upkeep, you lose 1 life.\n{0}: Regenerate enchanted creature.

res/cardsfolder/b/blight.txt

@@ -5,5 +5,6 @@ K:Enchant land
 A:SP$ Attach | Cost$ B B | ValidTgts$ Land | AILogic$ Curse
 T:Mode$ Taps | ValidCard$ Card.AttachedBy | Execute$ TrigDestroy | TriggerDescription$ When enchanted land becomes tapped, destroy it.
 SVar:TrigDestroy:AB$Destroy | Cost$ 0 | Defined$ TriggeredCard
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/blight.jpg
 Oracle:Enchant land\nWhen enchanted land becomes tapped, destroy it.

res/cardsfolder/b/brink_of_disaster.txt

@@ -5,5 +5,6 @@ K:Enchant creature or land
 A:SP$ Attach | Cost$ 2 B B | ValidTgts$ Creature,Land | AILogic$ Curse
 T:Mode$ Taps | ValidCard$ Card.AttachedBy | Execute$ TrigDestroy | TriggerDescription$ When enchanted permanent becomes tapped, destroy it.
 SVar:TrigDestroy:AB$ Destroy | Cost$ 0 | Defined$ TriggeredCard
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/brink_of_disaster.jpg
 Oracle:Enchant creature or land\nWhen enchanted permanent becomes tapped, destroy it.

res/cardsfolder/b/burden_of_guilt.txt

@@ -5,5 +5,6 @@ K:Enchant creature
 A:SP$ Attach | Cost$ W | ValidTgts$ Creature | AILogic$ KeepTapped
 A:AB$Tap | Cost$ 1 | Defined$ Enchanted | SpellDescription$ Tap enchanted creature.
 SVar:RemAIDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/burden_of_guilt.jpg
 Oracle:Enchant creature\n{1}: Tap enchanted creature.

res/cardsfolder/c/caustic_tar.txt

@@ -5,5 +5,6 @@ K:Enchant land
 A:SP$ Attach | Cost$ 4 B B | ValidTgts$ Land | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Land.AttachedBy | AddAbility$ LoseLife | Description$ Enchanted land has "tap: Target player loses 3 life."
 SVar:LoseLife:AB$LoseLife | Cost$ T | ValidTgts$ Player | LifeAmount$ 3 | TgtPrompt$ Target a player to lose life | SpellDescription$ Target player loses 3 life.
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/caustic_tar.jpg
 Oracle:Enchant land\nEnchanted land has "{T}: Target player loses 3 life."

res/cardsfolder/c/consecrate_land.txt

@@ -5,5 +5,6 @@ K:Enchant land
 A:SP$ Attach | Cost$ W | ValidTgts$ Land | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Land.EnchantedBy | AddHiddenKeyword$ CARDNAME can't be enchanted. | AddKeyword$ Indestructible | Description$ Enchanted land is indestructible and can't be enchanted by other Auras.
 SVar:RemRandomDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/consecrate_land.jpg
 Oracle:Enchant land\nEnchanted land is indestructible and can't be enchanted by other Auras.

res/cardsfolder/c/contempt.txt

@@ -7,5 +7,6 @@ T:Mode$ Attacks | ValidCard$ Card.EnchantedBy | DelayedTrigger$ DelBounce | Trig
 SVar:DelBounce:Mode$ Phase | Phase$ EndCombat | ValidPlayer$ Player | Execute$ BounceCritter | TriggerDescription$ Return enchanted creature and CARDNAME to their owners' hands.
 SVar:BounceCritter:DB$ ChangeZone | Defined$ Enchanted | Origin$ Battlefield | Destination$ Hand | SubAbility$ BounceSelf
 SVar:BounceSelf:DB$ ChangeZone | Defined$ Self | Origin$ Battlefield | Destination$ Hand
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/contempt.jpg
 Oracle:Enchant creature\nWhenever enchanted creature attacks, return it and Contempt to their owners' hands at end of combat.

res/cardsfolder/c/coral_net.txt

@@ -9,5 +9,6 @@ SVar:TrigCoralDiscard:AB$ Discard | Cost$ 0 | Defined$ You | Mode$ TgtChoose | N
 SVar:DBCoralSacrifice:DB$ Sacrifice | Defined$ Self | ConditionDefined$ Remembered | ConditionPresent$ Card | ConditionCompare$ EQ0 | SubAbility$ DBCoralCleanup
 SVar:DBCoralCleanup:DB$ Cleanup | ClearRemembered$ True
 SVar:RemRandomDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/coral_net.jpg
 Oracle:Enchant green or white creature\nEnchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you discard a card."

res/cardsfolder/c/curse_of_chains.txt

@@ -5,5 +5,6 @@ K:Enchant creature
 A:SP$ Attach | Cost$ 1 WU | ValidTgts$ Creature | AILogic$ KeepTapped
 T:Mode$ Phase | Phase$ Upkeep | TriggerZones$ Battlefield | Execute$ TrigTap | TriggerDescription$ At the beginning of each upkeep, tap enchanted creature.
 SVar:TrigTap:AB$Tap | Cost$ 0 | Defined$ Enchanted
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/curse_of_chains.jpg
 Oracle:Enchant creature\nAt the beginning of each upkeep, tap enchanted creature.

res/cardsfolder/d/debtors_pulpit.txt

@@ -5,5 +5,6 @@ K:Enchant land
 A:SP$ Attach | Cost$ 4 W | ValidTgts$ Land | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Card.EnchantedBy | AddAbility$ DPTapCreature | Description$ Enchanted land has "T: Tap target creature."
 SVar:DPTapCreature:AB$ Tap | Cost$ T | ValidTgts$ Creature | TgtPrompt$ Choose target creature.| SpellDescription$ Tap target creature.
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/debtors_pulpit.jpg
 Oracle:Enchant land\nEnchanted land has "{T}: Tap target creature."

res/cardsfolder/d/defang.txt

@@ -4,5 +4,6 @@ Types:Enchantment Aura
 K:Enchant creature
 A:SP$ Attach | Cost$ 1 W | ValidTgts$ Creature | AILogic$ Curse
 S:Mode$ PreventDamage | Source$ Creature.EnchantedBy | Description$ Prevent all damage that would be dealt by enchanted creature.
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/defang.jpg
 Oracle:Enchant creature\nPrevent all damage that would be dealt by enchanted creature.

res/cardsfolder/d/disappear.txt

@@ -5,5 +5,6 @@ K:Enchant creature
 A:SP$ Attach | Cost$ 2 U U | ValidTgts$ Creature | AILogic$ Curse
 A:AB$ ChangeZone | Cost$ U | Defined$ Enchanted | Origin$ Battlefield | Destination$ Hand | SubAbility$ DBBounce | SpellDescription$ Return enchanted creature and CARDNAME to their owners' hands.
 SVar:DBBounce:DB$ ChangeZone | Defined$ Self | Origin$ Battlefield | Destination$ Hand
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/disappear.jpg
 Oracle:Enchant creature\n{U}: Return enchanted creature and Disappear to their owners' hands.

res/cardsfolder/d/disruption_aura.txt

@@ -6,5 +6,6 @@ A:SP$ Attach | Cost$ 2 U | ValidTgts$ Artifact | TgtPrompt$ Select target artifa
 S:Mode$ Continuous | Affected$ Artifact.EnchantedBy | AddTrigger$ TrigPhase | AddSVar$ TrigPendrellFlux | Description$ Enchanted artifact has "At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost."
 SVar:TrigPhase:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | Execute$ TrigPendrellFlux | TriggerZones$ Battlefield | TriggerDescription$ At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost.
 SVar:TrigPendrellFlux:DB$ Sacrifice | Defined$ Self | UnlessCost$ CardManaCost | UnlessPayer$ You
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/disruption_aura.jpg
 Oracle:Enchant artifact\nEnchanted artifact has "At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost."

res/cardsfolder/e/elemental_mastery.txt

@@ -6,5 +6,6 @@ A:SP$ Attach | Cost$ 3 R | ValidTgts$ Creature | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddAbility$ Token | AddSVar$ ElementalMasteryCount | Description$ Enchanted creature has "Tap: Put X 1/1 red Elemental creature tokens with haste onto the battlefield, where X is this creature's power. Exile them at the beginning of the next end step."
 SVar:Token:AB$Token | Cost$ T | TokenAmount$ ElementalMasteryCount | TokenImage$ r 1 1 elemental | TokenName$ Elemental | TokenColors$ Red | TokenTypes$ Creature,Elemental | TokenKeywords$ Haste | TokenHiddenKeywords$ At the beginning of the end step, exile CARDNAME. | TokenPower$ 1 | TokenToughness$ 1 | References$ ElementalMasteryCount | SpellDescription$ Put X 1/1 red Elemental creature tokens with haste onto the battlefield, where X is this creature's power. Exile them at the beginning of the next end step.
 SVar:ElementalMasteryCount:Count$CardPower
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/elemental_mastery.jpg
 Oracle:Enchant creature\nEnchanted creature has "{T}: Put X 1/1 red Elemental creature tokens with haste onto the battlefield, where X is this creature's power. Exile them at the beginning of the next end step."

res/cardsfolder/e/essence_leak.txt

@@ -7,5 +7,6 @@ S:Mode$ Continuous | Affected$ Permanent.AttachedBy+Red,Permanent.AttachedBy+Gre
 SVar:TrigEssencePhase:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | Execute$ TrigEssenceLeak | TriggerZones$ Battlefield | TriggerDescription$ At the beginning of your upkeep, sacrifice this permanent unless you pay its mana cost.
 SVar:TrigEssenceLeak:DB$ Sacrifice | Defined$ Self | UnlessCost$ CardManaCost | UnlessPayer$ You
 SVar:RemRandomDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/essence_leak.jpg
 Oracle:Enchant permanent\nAs long as enchanted permanent is red or green, it has "At the beginning of your upkeep, sacrifice this permanent unless you pay its mana cost."

res/cardsfolder/f/flowering_field.txt

@@ -6,5 +6,6 @@ K:Enchant land
 A:SP$ Attach | Cost$ 1 W | ValidTgts$ Land | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Land.EnchantedBy | AddAbility$ Pump | Description$ Enchanted land has "Tap: Prevent the next 1 damage that would be dealt to target creature or player this turn."
 SVar:Pump:AB$PreventDamage | Cost$ T | ValidTgts$ Creature,Player | TgtPrompt$ Select target creature or player | Amount$ 1 | SpellDescription$ Prevent the next 1 damage that would be dealt to target creature or player this turn.
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/flowering_field.jpg
 Oracle:Enchant land\nEnchanted land has "{T}: Prevent the next 1 damage that would be dealt to target creature or player this turn."

res/cardsfolder/f/fortitude.txt

@@ -7,5 +7,6 @@ A:AB$ Regenerate | Cost$ Sac<1/Forest> | Defined$ Enchanted | SpellDescription$
 T:Mode$ ChangesZone | Origin$ Battlefield | Destination$ Graveyard | ValidCard$ Card.Self | TriggerZones$ Graveyard | Execute$ TrigBounce | TriggerController$ TriggeredCardController | TriggerDescription$ When CARDNAME is put into a graveyard from the battlefield, return CARDNAME to its owner's hand.
 SVar:TrigBounce:AB$ChangeZone | Cost$ 0 | Origin$ Graveyard | Destination$ Hand | Defined$ Self
 SVar:RemAIDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/fortitude.jpg
 Oracle:Enchant creature\nSacrifice a Forest: Regenerate enchanted creature.\nWhen Fortitude is put into a graveyard from the battlefield, return Fortitude to its owner's hand.

res/cardsfolder/f/freed_from_the_real.txt

@@ -6,5 +6,6 @@ A:SP$ Attach | Cost$ 2 U | ValidTgts$ Creature | AILogic$ Pump
 A:AB$ Tap | Cost$ U | Defined$ Enchanted | SpellDescription$ Tap enchanted creature.
 A:AB$ Untap | Cost$ U | Defined$ Enchanted | SpellDescription$ Untap enchanted creature.
 SVar:RemAIDeck:True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/freed_from_the_real.jpg
 Oracle:Enchant creature\n{U}: Tap enchanted creature.\n{U}: Untap enchanted creature.

res/cardsfolder/g/genju_of_the_cedars.txt

@@ -6,5 +6,6 @@ A:SP$ Attach | Cost$ G | ValidTgts$ Forest | AILogic$ Pump
 A:AB$ Animate | Cost$ 2 | Defined$ Enchanted | Power$ 4 | Toughness$ 4 | Types$ Creature,Spirit | Colors$ Green | SpellDescription$ Enchanted Forest becomes a 4/4 green Spirit creature until end of turn. It's still a land.
 T:Mode$ ChangesZone | ValidCard$ Card.AttachedBy | Origin$ Battlefield | Destination$ Graveyard | TriggerZones$ Battlefield | Execute$ TrigReturnOwner | OptionalDecider$ You | TriggerDescription$ When enchanted Forest is put into a graveyard, you may return CARDNAME from your graveyard to your hand.
 SVar:TrigReturnOwner:AB$ChangeZone | Cost$ 0 | Defined$ Self | Origin$ Graveyard | Destination$ Hand
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/genju_of_the_cedars.jpg
 Oracle:Enchant Forest\n{2}: Enchanted Forest becomes a 4/4 green Spirit creature until end of turn. It's still a land.\nWhen enchanted Forest is put into a graveyard, you may return Genju of the Cedars from your graveyard to your hand.

res/cardsfolder/g/genju_of_the_falls.txt

@@ -6,5 +6,6 @@ A:SP$ Attach | Cost$ U | ValidTgts$ Island | AILogic$ Pump
 A:AB$ Animate | Cost$ 2 | Defined$ Enchanted | Power$ 3 | Toughness$ 2 | Types$ Creature,Spirit | Colors$ Blue | Keywords$ Flying | SpellDescription$ Enchanted Island becomes a 3/2 blue Spirit creature with flying until end of turn. It's still a land.
 T:Mode$ ChangesZone | ValidCard$ Card.AttachedBy | Origin$ Battlefield | Destination$ Graveyard | TriggerZones$ Battlefield | Execute$ TrigReturnOwner | OptionalDecider$ You | TriggerDescription$ When enchanted Island is put into a graveyard, you may return CARDNAME from your graveyard to your hand.
 SVar:TrigReturnOwner:AB$ChangeZone | Cost$ 0 | Defined$ Self | Origin$ Graveyard | Destination$ Hand
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/genju_of_the_falls.jpg
 Oracle:Enchant Island\n{2}: Enchanted Island becomes a 3/2 blue Spirit creature with flying until end of turn. It's still a land.\nWhen enchanted Island is put into a graveyard, you may return Genju of the Falls from your graveyard to your hand.

res/cardsfolder/g/genju_of_the_fens.txt

@@ -7,5 +7,6 @@ A:AB$ Animate | Cost$ 2 | Defined$ Enchanted | Power$ 2 | Toughness$ 2 | Types$
 T:Mode$ ChangesZone | ValidCard$ Card.AttachedBy | Origin$ Battlefield | Destination$ Graveyard | TriggerZones$ Battlefield | Execute$ TrigReturnOwner | OptionalDecider$ You | TriggerDescription$ When enchanted Swamp is put into a graveyard, you may return CARDNAME from your graveyard to your hand.
 SVar:ABPump:AB$Pump | Cost$ B | Defined$ Self | NumAtt$ +1 | NumDef$ +1 | SpellDescription$ This creature gets +1/+1 until end of turn.
 SVar:TrigReturnOwner:AB$ChangeZone | Cost$ 0 | Defined$ Self | Origin$ Graveyard | Destination$ Hand
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/genju_of_the_fens.jpg
 Oracle:Enchant Swamp\n{2}: Until end of turn, enchanted Swamp becomes a 2/2 black Spirit creature with "{B}: This creature gets +1/+1 until end of turn." It's still a land.\nWhen enchanted Swamp is put into a graveyard, you may return Genju of the Fens from your graveyard to your hand.

res/cardsfolder/g/genju_of_the_fields.txt

@@ -8,6 +8,7 @@ T:Mode$ ChangesZone | ValidCard$ Card.AttachedBy | Origin$ Battlefield | Destina
 SVar:TrigReturnOwner:AB$ChangeZone | Cost$ 0 | Defined$ Self | Origin$ Graveyard | Destination$ Hand
 SVar:PseudoLifelink:Mode$ DamageDone | ValidSource$ Card.Self | Execute$ GenjuTrigGain | TriggerZones$ Battlefield | TriggerDescription$ Whenever CARDNAME deals damage, you gain that much life.
 SVar:GenjuTrigGain:AB$GainLife | Cost$ 0 | Defined$ You | LifeAmount$ GenjuX | References$ GenjuX
+SVar:NonStackingAttachEffect:True
 SVar:GenjuX:TriggerCount$DamageAmount
 SVar:Picture:http://www.wizards.com/global/images/magic/general/genju_of_the_fields.jpg
 Oracle:Enchant Plains\n{2}: Until end of turn, enchanted Plains becomes a 2/5 white Spirit creature with "Whenever this creature deals damage, its controller gains that much life." It's still a land.\nWhen enchanted Plains is put into a graveyard, you may return Genju of the Fields from your graveyard to your hand.

res/cardsfolder/g/genju_of_the_realm.txt

@@ -6,5 +6,6 @@ A:SP$ Attach | Cost$ W U B R G | ValidTgts$ Land | AILogic$ Pump
 A:AB$ Animate | Cost$ 2 | Defined$ Enchanted | Power$ 8 | Toughness$ 12 | Types$ Creature,Legendary,Spirit | Keywords$ Trample | SpellDescription$ Enchanted land becomes a legendary 8/12 Spirit creature with trample until end of turn. It's still a land.
 T:Mode$ ChangesZone | ValidCard$ Card.AttachedBy | Origin$ Battlefield | Destination$ Graveyard | TriggerZones$ Battlefield | Execute$ TrigReturnOwner | OptionalDecider$ You | TriggerDescription$ When enchanted land is put into a graveyard, you may return CARDNAME from your graveyard to your hand.
 SVar:TrigReturnOwner:AB$ChangeZone | Cost$ 0 | Defined$ Self | Origin$ Graveyard | Destination$ Hand
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/genju_of_the_realm.jpg
 Oracle:Enchant land\n{2}: Enchanted land becomes a legendary 8/12 Spirit creature with trample until end of turn. It's still a land.\nWhen enchanted land is put into a graveyard, you may return Genju of the Realm from your graveyard to your hand.

res/cardsfolder/g/genju_of_the_spires.txt

@@ -6,5 +6,6 @@ A:SP$ Attach | Cost$ R | ValidTgts$ Mountain | AILogic$ Pump
 A:AB$ Animate | Cost$ 2 | Defined$ Enchanted | Power$ 6 | Toughness$ 1 | Types$ Creature,Spirit | Colors$ Red | SpellDescription$ Enchanted Mountain becomes a 6/1 red Spirit creature until end of turn. It's still a land.
 T:Mode$ ChangesZone | ValidCard$ Card.AttachedBy | Origin$ Battlefield | Destination$ Graveyard | TriggerZones$ Battlefield | Execute$ TrigReturnOwner | OptionalDecider$ You | TriggerDescription$ When enchanted Mountain is put into a graveyard, you may return CARDNAME from your graveyard to your hand.
 SVar:TrigReturnOwner:AB$ChangeZone | Cost$ 0 | Defined$ Self | Origin$ Graveyard | Destination$ Hand
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/genju_of_the_spires.jpg
 Oracle:Enchant Mountain\n{2}: Enchanted Mountain becomes a 6/1 red Spirit creature until end of turn. It's still a land.\nWhen enchanted Mountain is put into a graveyard, you may return Genju of the Spires from your graveyard to your hand.

res/cardsfolder/g/gigantiform.txt

@@ -7,5 +7,6 @@ A:SP$ Attach | Cost$ 3 G G | ValidTgts$ Creature | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Creature.EnchantedBy | SetPower$ 8 | SetToughness$ 8 | AddKeyword$ Trample | Description$ Enchanted creature is 8/8 and has trample.
 T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Card.Self+kicked | OptionalDecider$ You | Execute$ KickedGiant | TriggerDescription$ When CARDNAME enters the battlefield, if it was kicked, you may search your library for a card named CARDNAME, put it onto the battlefield, then shuffle your library.
 SVar:KickedGiant:DB$ ChangeZone | Origin$ Library | Destination$ Battlefield | ChangeType$ Card.namedGigantiform | ChangeNum$ 1 | ShuffleNonMandatory$ True
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/gigantiform.jpg
 Oracle:Kicker {4}\nEnchant creature\nEnchanted creature is 8/8 and has trample.\nWhen Gigantiform enters the battlefield, if it was kicked, you may search your library for a card named Gigantiform, put it onto the battlefield, then shuffle your library.

res/cardsfolder/h/hermetic_study.txt

@@ -5,5 +5,6 @@ K:Enchant creature
 A:SP$ Attach | Cost$ 1 U | ValidTgts$ Creature | AILogic$ Pump
 S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddAbility$ Damage | Description$ Enchanted creature has "tap: This creature deals 1 damage to target creature or player."
 SVar:Damage:AB$DealDamage | Cost$ T | ValidTgts$ Creature,Player | TgtPrompt$ Select target creature or player | NumDmg$ 1 | SpellDescription$ CARDNAME deals 1 damage to target creature or player.
+SVar:NonStackingAttachEffect:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/hermetic_study.jpg
 Oracle:Enchant creature\nEnchanted creature has "{T}: This creature deals 1 damage to target creature or player."

res/lists/NonStackingKWList.txt

@@ -1,10 +1,12 @@
 All creatures able to block CARDNAME do so.
-CARDNAME attacks each turn if able.
-CARDNAME can attack as though it didn't have defender.
-CARDNAME can't be regenerated.
-CARDNAME must be blocked if able.
 CantBeBlockedByAmount LT2
 CantBeBlockedByAmount LT3
+CARDNAME's activated abilities can't be activated.
+CARDNAME attacks each turn if able.
+CARDNAME can attack as though it didn't have defender.
+CARDNAME can block any number of creatures.
+CARDNAME can't be regenerated.
+CARDNAME must be blocked if able.
 CARDNAME doesn't untap during your untap step.
 Changeling
 Convoke

src/main/java/forge/CardUtil.java

@@ -49,7 +49,8 @@ public final class CardUtil {
             kw = kw.substring(7);
         }
         
-        return !kw.startsWith("Protection") && !Constant.Keywords.NON_STACKING_LIST.contains(kw);
+        return !kw.startsWith("Protection") && !kw.startsWith("CantBeBlockedBy") 
+                && !Constant.Keywords.NON_STACKING_LIST.contains(kw);
     }
 
     public static String getShortColorsString(final Iterable<String> colors) {

src/main/java/forge/card/ability/ai/AttachAi.java

@@ -561,7 +561,7 @@ public class AttachAi extends SpellAbilityAi {
         }
 
         Card c = null;
-        if ((prefList == null) || prefList.isEmpty()) {
+        if (prefList == null || prefList.isEmpty()) {
             prefList = new ArrayList<Card>(list);
         } else {
             c = ComputerUtilCard.getBestAI(prefList);
@@ -586,6 +586,20 @@ public class AttachAi extends SpellAbilityAi {
             });
         }
 
+        //some auras aren't useful in multiples
+        if (attachSource.hasSVar("NonStackingAttachEffect")) {
+            prefList = CardLists.filter(prefList, new Predicate<Card>() {
+                @Override
+                public boolean apply(final Card c) {
+                    for (Card aura : c.getEnchantedBy()) {
+                        if (aura.getName().equals(attachSource.getName()))
+                            return false;
+                    }
+                    return true;
+                }
+            });
+        }
+
         c = ComputerUtilCard.getBestAI(prefList);
 
         if (c == null) {
@@ -835,7 +849,7 @@ public class AttachAi extends SpellAbilityAi {
             });
         }
 
-        //some equipments aren't useful in multiples
+        //some auras/equipments aren't useful in multiples
         if (attachSource.hasSVar("NonStackingAttachEffect")) {
             prefList = CardLists.filter(prefList, new Predicate<Card>() {
                 @Override
@@ -844,6 +858,10 @@ public class AttachAi extends SpellAbilityAi {
                         if (equipment.getName().equals(attachSource.getName()))
                             return false;
                     }
+                    for (Card aura : c.getEnchantedBy()) {
+                        if (aura.getName().equals(attachSource.getName()))
+                            return false;
+                    }
                     return true;
                 }
             });