diff --git a/res/cardsfolder/b/balefire_dragon.txt b/res/cardsfolder/b/balefire_dragon.txt
index 5482f0a0369..f1c71acba97 100644
--- a/res/cardsfolder/b/balefire_dragon.txt
+++ b/res/cardsfolder/b/balefire_dragon.txt
@@ -1,14 +1,15 @@
-Name:Balefire Dragon
-ManaCost:5 R R
-Types:Creature Dragon
-Text:no text
-PT:6/6
-K:Flying
-T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Player | CombatDamage$ True | Execute$ TrigDamage | TriggerDescription$ Whenever CARDNAME deals combat damage to a player, it deals that much damage to each creature that player controls.
-SVar:TrigDamage:AB$ DamageAll | Cost$ 0 | NumDmg$ X | ValidCards$ Creature.YouDontCtrl
-SVar:X:TriggerCount$DamageAmount
-SVar:Rarity:Mythic
-SVar:Picture:http://www.wizards.com/global/images/magic/general/balefire_dragon.jpg
-SetInfo:ISD|Mythic|http://magiccards.info/scans/en/isd/129.jpg
-Oracle:Flying\nWhenever Balefire Dragon deals combat damage to a player, it deals that much damage to each creature that player controls.
+Name:Balefire Dragon
+ManaCost:5 R R
+Types:Creature Dragon
+Text:no text
+PT:6/6
+K:Flying
+T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Player | CombatDamage$ True | Execute$ TrigDamage | TriggerDescription$ Whenever CARDNAME deals combat damage to a player, it deals that much damage to each creature that player controls.
+SVar:TrigDamage:AB$ DamageAll | Cost$ 0 | NumDmg$ X | ValidCards$ Creature.YouDontCtrl
+SVar:X:TriggerCount$DamageAmount
+SVar:MustBeBlocked:True
+SVar:Rarity:Mythic
+SVar:Picture:http://www.wizards.com/global/images/magic/general/balefire_dragon.jpg
+SetInfo:ISD|Mythic|http://magiccards.info/scans/en/isd/129.jpg
+Oracle:Flying\nWhenever Balefire Dragon deals combat damage to a player, it deals that much damage to each creature that player controls.
 End
\ No newline at end of file
diff --git a/res/cardsfolder/c/cabal_executioner.txt b/res/cardsfolder/c/cabal_executioner.txt
index bace7dc40a0..fd37732984b 100644
--- a/res/cardsfolder/c/cabal_executioner.txt
+++ b/res/cardsfolder/c/cabal_executioner.txt
@@ -6,6 +6,7 @@ PT:2/2
 K:Morph:3 B B
 T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Opponent | CombatDamage$ True | Execute$ TrigSac | TriggerZones$ Battlefield | TriggerDescription$ Whenever CARDNAME deals combat damage to a player, that player sacrifices a creature.
 SVar:TrigSac:AB$Sacrifice | Cost$ 0 | Defined$ Opponent | SacValid$ Creature
+SVar:MustBeBlocked:True
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/cabal_executioner.jpg
 SetInfo:ONS|Uncommon|http://magiccards.info/scans/en/on/130.jpg
diff --git a/res/cardsfolder/g/greater_harvester.txt b/res/cardsfolder/g/greater_harvester.txt
index 9b4fcb76ad2..1a84387a9d6 100644
--- a/res/cardsfolder/g/greater_harvester.txt
+++ b/res/cardsfolder/g/greater_harvester.txt
@@ -7,6 +7,7 @@ T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | Execute$ TrigSacYou | Trigger
 SVar:TrigSacYou:AB$Sacrifice | Cost$ 0 | SacValid$ Permanent | Defined$ You
 T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Opponent | CombatDamage$ True | Execute$ TrigSacOpp | TriggerDescription$ Whenever CARDNAME deals combat damage to a player, that player sacrifices two permanents.
 SVar:TrigSacOpp:AB$ Sacrifice | Cost$ 0 | SacValid$ Permanent | Amount$ 2 | Defined$ Opponent
+SVar:MustBeBlocked:True
 SVar:Rarity:Rare
 SVar:Picture:http://www.wizards.com/global/images/magic/general/greater_harvester.jpg
 SetInfo:DST|Rare|http://magiccards.info/scans/en/ds/44.jpg
diff --git a/res/cardsfolder/l/liege_of_the_tangle.txt b/res/cardsfolder/l/liege_of_the_tangle.txt
index 4bbb5535dd7..a5759b10e3e 100644
--- a/res/cardsfolder/l/liege_of_the_tangle.txt
+++ b/res/cardsfolder/l/liege_of_the_tangle.txt
@@ -10,6 +10,7 @@ SVar:TrigPutCounter:AB$PutCounter | Cost$ 0 | ValidTgts$ Land.YouCtrl | Optional
 SVar:X:Count$Valid Land.YouCtrl
 SVar:DBEffect:DB$ Effect | Cost$ 0 | Name$ Awakening Effect | StaticAbilities$ KWAnimateAll | Unique$ True | Duration$ Permanent
 SVar:KWAnimateAll:Mode$ Continuous | Affected$ Card.counters_GE1_AWAKENING | SetPower$ 8 | SetToughness$ 8 | AddType$ Creature & Elemental | SetColor$ Green | Description$ Each of those lands is an 8/8 green Elemental creature for as long as it has an awakening counter on it. They're still lands.
+SVar:MustBeBlocked:True
 SVar:Rarity:Mythic
 SVar:Picture:http://www.wizards.com/global/images/magic/general/liege_of_the_tangle.jpg
 SetInfo:SOM|Mythic|http://magiccards.info/scans/en/som/123.jpg
diff --git a/res/cardsfolder/m/mordant_dragon.txt b/res/cardsfolder/m/mordant_dragon.txt
index 66769d0b6dd..4d79bc3f4f5 100644
--- a/res/cardsfolder/m/mordant_dragon.txt
+++ b/res/cardsfolder/m/mordant_dragon.txt
@@ -8,6 +8,7 @@ A:AB$ Pump | Cost$ 1 R | NumAtt$ +1 | SpellDescription$ CARDNAME gets +1/+0 unti
 T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Player | CombatDamage$ True | OptionalDecider$ You | Execute$ TrigDamage | TriggerDescription$ Whenever CARDNAME deals combat damage to a player, you may have it deal that much damage to target creature that player controls.
 SVar:TrigDamage:AB$DealDamage | Cost$ 0 | ValidTgts$ Creature.YouDontCtrl | NumDmg$ X | TgtPrompt$ Select target creature.
 SVar:X:Count$CardPower
+SVar:MustBeBlocked:True
 SVar:Rarity:Rare
 SVar:Picture:http://www.wizards.com/global/images/magic/general/mordant_dragon.jpg
 SetInfo:WWK|Rare|http://magiccards.info/scans/en/wwk/85.jpg
diff --git a/res/cardsfolder/t/throat_slitter.txt b/res/cardsfolder/t/throat_slitter.txt
index 531a51643bd..c1b1097d628 100644
--- a/res/cardsfolder/t/throat_slitter.txt
+++ b/res/cardsfolder/t/throat_slitter.txt
@@ -7,6 +7,7 @@ A:AB$ ChangeZone | Cost$ 2 B Return<1/Creature.attacking+unblocked> | CostDesc$
 T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Opponent | Execute$ TrigDestroy | CombatDamage$ True | TriggerDescription$ Whenever CARDNAME deals combat damage to a player, destroy target nonblack creature that player controls.
 SVar:TrigDestroy:AB$Destroy | Cost$ 0 | ValidTgts$ Creature.nonBlack+YouDontCtrl | TgtPrompt$ Select target nonblack creature defending player controls
 SVar:RemAIDeck:True
+SVar:MustBeBlocked:True
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/throat_slitter.jpg
 SetInfo:BOK|Uncommon|http://magiccards.info/scans/en/bok/88.jpg