diff --git a/.gitattributes b/.gitattributes
index 0465782f0b5..37809bfd1e4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3386,6 +3386,7 @@ res/cardsfolder/g/granulate.txt svneol=native#text/plain
 res/cardsfolder/g/grapeshot.txt svneol=native#text/plain
 res/cardsfolder/g/grapeshot_catapult.txt svneol=native#text/plain
 res/cardsfolder/g/grappler_spider.txt svneol=native#text/plain
+res/cardsfolder/g/grappling_hook.txt -text
 res/cardsfolder/g/grasp_of_darkness.txt svneol=native#text/plain
 res/cardsfolder/g/grasp_of_phantoms.txt -text
 res/cardsfolder/g/grassland_crusader.txt svneol=native#text/plain
diff --git a/res/cardsfolder/g/giant_ambush_beetle.txt b/res/cardsfolder/g/giant_ambush_beetle.txt
index ff635ea777c..caf095b8775 100644
--- a/res/cardsfolder/g/giant_ambush_beetle.txt
+++ b/res/cardsfolder/g/giant_ambush_beetle.txt
@@ -5,7 +5,7 @@ Text:no text
 PT:4/3
 K:Haste
 T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Creature.Self | Execute$ TrigProvoke | OptionalDecider$ You | TriggerDescription$ When CARDNAME enters the battlefield, you may have target creature block it this turn if able.
-SVar:TrigProvoke:DB$ MustBlock | ValidTgts$ Creature | TgtPrompt$ Select target creature
+SVar:TrigProvoke:AB$ MustBlock | Cost$ 0 | ValidTgts$ Creature | TgtPrompt$ Select target creature
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/giant_ambush_beetle.jpg
 SetInfo:ARB|Uncommon|http://magiccards.info/scans/en/arb/137.jpg
diff --git a/res/cardsfolder/g/grappling_hook.txt b/res/cardsfolder/g/grappling_hook.txt
new file mode 100644
index 00000000000..cbd81a77813
--- /dev/null
+++ b/res/cardsfolder/g/grappling_hook.txt
@@ -0,0 +1,12 @@
+Name:Grappling Hook
+ManaCost:4
+Types:Artifact Equipment
+Text:Equipped creature has double strike.
+K:eqPump 4:+0/+0/Double Strike
+T:Mode$ Attacks | ValidCard$ Card.AttachedBy | Execute$ TrigProvoke | OptionalDecider$ You | TriggerDescription$ Whenever equipped creature attacks, you may have target creature block it this turn if able.
+SVar:TrigProvoke:AB$ MustBlock | Cost$ 0 | ValidTgts$ Creature | DefinedAttacker$ Equipped | TgtPrompt$ Select target creature
+SVar:Rarity:Rare
+SVar:Picture:http://www.wizards.com/global/images/magic/general/grappling_hook.jpg
+SetInfo:ZEN|Rare|http://magiccards.info/scans/en/zen/203.jpg
+Oracle:Equipped creature has double strike.\nWhenever equipped creature attacks, you may have target creature block it this turn if able.\nEquip {4}
+End
\ No newline at end of file
diff --git a/res/cardsfolder/t/touch_of_vitae.txt b/res/cardsfolder/t/touch_of_vitae.txt
index a3c47b97218..5700111e719 100644
--- a/res/cardsfolder/t/touch_of_vitae.txt
+++ b/res/cardsfolder/t/touch_of_vitae.txt
@@ -1,13 +1,14 @@
-Name:Touch of Vitae
-ManaCost:2 G
-Types:Instant
-Text:no text
-A:SP$ Pump | Cost$ 2 G | ValidTgts$ Creature | TgtPrompt$ Select target creature | KW$ Haste | SubAbility$ DBAnimate | SpellDescription$ Until end of turn, target creature gains haste and "0: Untap this creature. Activate this ability only once." Draw a card at the beginning of the next turn's upkeep.
-SVar:DBAnimate:DB$ Animate | Defined$ Targeted | Abilities$ ABUntap | SubAbility$ DBDraw
-SVar:ABUntap:AB$ Untap | Cost$ 0 | Defined$ Self | ActivationLimit$ 1 | SpellDescription$ Untap this creature.  Activate this ability only once.
-SVar:DBDraw:DB$Draw | NumCards$ 1 | NextUpkeep$ True
-SVar:Rarity:Uncommon
-SVar:Picture:http://www.wizards.com/global/images/magic/general/touch_of_vitae.jpg
-SetInfo:ICE|Uncommon|http://magiccards.info/scans/en/ia/159.jpg
-Oracle:Until end of turn, target creature gains haste and "{0}: Untap this creature. Activate this ability only once."\nDraw a card at the beginning of the next turn's upkeep.
+Name:Touch of Vitae
+ManaCost:2 G
+Types:Instant
+Text:no text
+A:SP$ Pump | Cost$ 2 G | ValidTgts$ Creature | TgtPrompt$ Select target creature | KW$ Haste | SubAbility$ DBAnimate | SpellDescription$ Until end of turn, target creature gains haste and "0: Untap this creature. Activate this ability only once." Draw a card at the beginning of the next turn's upkeep.
+SVar:DBAnimate:DB$ Animate | Defined$ Targeted | Abilities$ ABUntap | SubAbility$ DBDraw
+SVar:ABUntap:AB$ Untap | Cost$ 0 | Defined$ Self | ActivationLimit$ 1 | SpellDescription$ Untap this creature.  Activate this ability only once.
+SVar:DBDraw:DB$Draw | NumCards$ 1 | NextUpkeep$ True
+SVar:RemAIDeck:True
+SVar:Rarity:Uncommon
+SVar:Picture:http://www.wizards.com/global/images/magic/general/touch_of_vitae.jpg
+SetInfo:ICE|Uncommon|http://magiccards.info/scans/en/ia/159.jpg
+Oracle:Until end of turn, target creature gains haste and "{0}: Untap this creature. Activate this ability only once."\nDraw a card at the beginning of the next turn's upkeep.
 End
\ No newline at end of file
diff --git a/src/main/java/forge/card/abilityFactory/AbilityFactory_Combat.java b/src/main/java/forge/card/abilityFactory/AbilityFactory_Combat.java
index 1872a08080e..975638bc1b7 100644
--- a/src/main/java/forge/card/abilityFactory/AbilityFactory_Combat.java
+++ b/src/main/java/forge/card/abilityFactory/AbilityFactory_Combat.java
@@ -839,6 +839,7 @@ public final class AbilityFactory_Combat {
 
     private static boolean mustBlockDoTriggerAI(final AbilityFactory af, final SpellAbility sa,
             final boolean mandatory) {
+        HashMap<String, String> params = af.getMapParams();
         final Card source = sa.getSourceCard();
         Target abTgt = sa.getTarget();
         
@@ -850,6 +851,20 @@ public final class AbilityFactory_Combat {
         //only use on creatures that can attack
         if (!AllZone.getPhase().isBefore(Constant.Phase.Main2))
             return false;
+        
+        Card attacker = null;
+        if (params.containsKey("DefinedAttacker")) {
+            ArrayList<Card> cards = AbilityFactory.getDefinedCards(sa.getSourceCard(), params.get("DefinedAttacker"), sa);
+            if (cards.isEmpty())
+                return false;
+            
+            attacker = cards.get(0);
+        }
+        
+        if (attacker == null)
+            attacker = source;
+        
+        final Card definedAttacker = attacker; 
 
         boolean chance = false;
 
@@ -860,11 +875,11 @@ public final class AbilityFactory_Combat {
             list = list.getValidCards(abTgt.getValidTgts(), source.getController(), source);
             list = list.filter(new CardListFilter() {
                 public boolean addCard(Card c) {
-                    if (!CombatUtil.canBlock(source, c))
+                    if (!CombatUtil.canBlock(definedAttacker, c))
                         return false;
-                    if (CombatUtil.canDestroyAttacker(source, c, null, false))
+                    if (CombatUtil.canDestroyAttacker(definedAttacker, c, null, false))
                         return false;
-                    if (!CombatUtil.canDestroyBlocker(c, source, null, false))
+                    if (!CombatUtil.canDestroyBlocker(c, definedAttacker, null, false))
                         return false;
                     return true;
                 }