diff --git a/res/cardsfolder/a/angels_grace.txt b/res/cardsfolder/a/angels_grace.txt
index e13f3eb131f..73dd5c6e417 100644
--- a/res/cardsfolder/a/angels_grace.txt
+++ b/res/cardsfolder/a/angels_grace.txt
@@ -3,11 +3,10 @@ ManaCost:W
 Types:Instant
 Text:no text
 K:Split second
-A:SP$ Effect | Cost$ W | Name$ Angel's Grace Effect | Keywords$ CantLose,OppsCantWin,AliFromCairo | SpellDescription$ You can't lose the game this turn and your opponents can't win the game this turn. Until end of turn, damage that would reduce your life total to less than 1 reduces it to 1 instead.
+A:SP$ Effect | Cost$ W | Name$ Angel's Grace Effect | Keywords$ CantLose,OppsCantWin,AliFromCairo | AILogic$ Fog | SpellDescription$ You can't lose the game this turn and your opponents can't win the game this turn. Until end of turn, damage that would reduce your life total to less than 1 reduces it to 1 instead.
 SVar:CantLose:You can't lose the game.
 SVar:OppsCantWin:Your opponents can't win the game.
 SVar:AliFromCairo:Damage that would reduce your life total to less than 1 reduces it to 1 instead.
-SVar:RemAIDeck:True
 SVar:Rarity:Rare
 SVar:Picture:http://www.wizards.com/global/images/magic/general/angels_grace.jpg
 SetInfo:TSP|Rare|http://magiccards.info/scans/en/ts/3.jpg
diff --git a/res/cardsfolder/c/chameleon_blur.txt b/res/cardsfolder/c/chameleon_blur.txt
index e10d810cb2a..f3e4a7cf81b 100644
--- a/res/cardsfolder/c/chameleon_blur.txt
+++ b/res/cardsfolder/c/chameleon_blur.txt
@@ -2,7 +2,7 @@ Name:Chameleon Blur
 ManaCost:3 G
 Types:Instant
 Text:no text
-A:SP$ Effect | Cost$ 3 G | Name$ Chameleon Blur Effect | StaticAbilities$ STPrevent | SpellDescription$ Prevent all damage that creatures would deal to players this turn.
+A:SP$ Effect | Cost$ 3 G | Name$ Chameleon Blur Effect | StaticAbilities$ STPrevent | AILogic$ Fog | SpellDescription$ Prevent all damage that creatures would deal to players this turn.
 SVar:STPrevent:Mode$ PreventDamage | Source$ Creature | Target$ Player | Description$ Prevent all damage that creatures would deal to players this turn.
 SVar:RemAIDeck:True
 SVar:Rarity:Common
diff --git a/res/cardsfolder/e/endure.txt b/res/cardsfolder/e/endure.txt
index 8e0382abc5b..3dd54efd78d 100644
--- a/res/cardsfolder/e/endure.txt
+++ b/res/cardsfolder/e/endure.txt
@@ -2,7 +2,7 @@ Name:Endure
 ManaCost:3 W W
 Types:Instant
 Text:no text
-A:SP$ Effect | Cost$ 3 W W | Name$ Endure Effect | StaticAbilities$ STPrevent | SpellDescription$ Prevent all damage that would be dealt to you and permanents you control this turn.
+A:SP$ Effect | Cost$ 3 W W | Name$ Endure Effect | StaticAbilities$ STPrevent | AILogic$ Fog | SpellDescription$ Prevent all damage that would be dealt to you and permanents you control this turn.
 SVar:STPrevent:Mode$ PreventDamage | Target$ You,Permanent.YouCtrl | Description$ Prevent all damage that would be dealt to you and permanents you control this turn.
 SVar:RemAIDeck:True
 SVar:Rarity:Uncommon
diff --git a/res/cardsfolder/e/ethereal_haze.txt b/res/cardsfolder/e/ethereal_haze.txt
index c0e7696f037..535f8b9e815 100644
--- a/res/cardsfolder/e/ethereal_haze.txt
+++ b/res/cardsfolder/e/ethereal_haze.txt
@@ -2,9 +2,8 @@ Name:Ethereal Haze
 ManaCost:W
 Types:Instant
 Text:no text
-A:SP$ Effect | Cost$ W | Name$ Chameleon Ethereal Haze Effect | StaticAbilities$ STPrevent | SpellDescription$ Prevent all damage that would be dealt by creatures this turn.
+A:SP$ Effect | Cost$ W | Name$ Chameleon Ethereal Haze Effect | StaticAbilities$ STPrevent | AILogic$ Fog | SpellDescription$ Prevent all damage that would be dealt by creatures this turn.
 SVar:STPrevent:Mode$ PreventDamage | Source$ Creature | Description$ Prevent all damage that would be dealt by creatures this turn.
-SVar:RemAIDeck:True
 SVar:Rarity:Common
 SVar:Picture:http://www.wizards.com/global/images/magic/general/ethereal_haze.jpg
 SetInfo:CHK|Common|http://magiccards.info/scans/en/chk/9.jpg
diff --git a/res/cardsfolder/h/harmless_assault.txt b/res/cardsfolder/h/harmless_assault.txt
index 4e3584bd746..7608b03e9a9 100644
--- a/res/cardsfolder/h/harmless_assault.txt
+++ b/res/cardsfolder/h/harmless_assault.txt
@@ -2,9 +2,8 @@ Name:Harmless Assault
 ManaCost:2 W W
 Types:Instant
 Text:no text
-A:SP$ Effect | Cost$ 2 W W | Name$ Harmless Assault Effect | StaticAbilities$ STPrevent | SpellDescription$ Prevent all combat damage that would be dealt this turn by attacking creatures.
+A:SP$ Effect | Cost$ 2 W W | Name$ Harmless Assault Effect | StaticAbilities$ STPrevent | AILogic$ Fog | SpellDescription$ Prevent all combat damage that would be dealt this turn by attacking creatures.
 SVar:STPrevent:Mode$ PreventDamage | Source$ Creature.attacking | CombatDamage$ True | Description$ Prevent all combat damage that would be dealt this turn by attacking creatures.
-SVar:RemAIDeck:True
 SVar:Rarity:Common
 SVar:Picture:http://www.wizards.com/global/images/magic/general/harmless_assault.jpg
 SetInfo:ROE|Common|http://magiccards.info/scans/en/roe/24.jpg
diff --git a/res/cardsfolder/s/safe_passage.txt b/res/cardsfolder/s/safe_passage.txt
index e8ea75aadd7..f5defa0de85 100644
--- a/res/cardsfolder/s/safe_passage.txt
+++ b/res/cardsfolder/s/safe_passage.txt
@@ -2,9 +2,8 @@ Name:Safe Passage
 ManaCost:2 W
 Types:Instant
 Text:no text
-A:SP$ Effect | Cost$ 2 W | Name$ Safe Passage Effect | StaticAbilities$ STPrevent | SpellDescription$ Prevent all damage that would be dealt to you and creatures you control this turn.
+A:SP$ Effect | Cost$ 2 W | Name$ Safe Passage Effect | StaticAbilities$ STPrevent | AILogic$ Fog | SpellDescription$ Prevent all damage that would be dealt to you and creatures you control this turn.
 SVar:STPrevent:Mode$ PreventDamage | Target$ You,Creature.YouCtrl | Description$ Prevent all damage that would be dealt to you and creatures you control this turn.
-SVar:RemAIDeck:True
 SVar:Rarity:Common
 SVar:Picture:http://www.wizards.com/global/images/magic/general/safe_passage.jpg
 SetInfo:M11|Common|http://magiccards.info/scans/en/m11/26.jpg
diff --git a/res/cardsfolder/s/silence.txt b/res/cardsfolder/s/silence.txt
index 92ff6e8f133..62ee70ff879 100644
--- a/res/cardsfolder/s/silence.txt
+++ b/res/cardsfolder/s/silence.txt
@@ -2,9 +2,8 @@ Name:Silence
 ManaCost:W
 Types:Instant
 Text:no text
-A:SP$ Effect | Cost$ W | Name$ Silence Effect | StaticAbilities$ STCantBeCast | SpellDescription$ Your opponents can't cast spells this turn. (Spells cast before this resolves are unaffected.)
+A:SP$ Effect | Cost$ W | Name$ Silence Effect | StaticAbilities$ STCantBeCast | AILogic$ BeginningOfOppTurn | SpellDescription$ Your opponents can't cast spells this turn. (Spells cast before this resolves are unaffected.)
 SVar:STCantBeCast:Mode$ CantBeCast | ValidCard$ Card | Caster$ Opponent | Description$ Your opponents can't cast spells.
-SVar:RemAIDeck:True
 SVar:Rarity:Rare
 SVar:Picture:http://www.wizards.com/global/images/magic/general/silence.jpg
 SetInfo:M11|Rare|http://magiccards.info/scans/en/m11/30.jpg
diff --git a/res/cardsfolder/t/tanglesap.txt b/res/cardsfolder/t/tanglesap.txt
index 804cbe70027..d4a18f5ea5f 100644
--- a/res/cardsfolder/t/tanglesap.txt
+++ b/res/cardsfolder/t/tanglesap.txt
@@ -2,9 +2,8 @@ Name:Tanglesap
 ManaCost:1 G
 Types:Instant
 Text:no text
-A:SP$ Effect | Cost$ 1 G | Name$ Tanglesap Effect | StaticAbilities$ STPrevent | SpellDescription$ Prevent all combat damage that would be dealt this turn by creatures without trample.
+A:SP$ Effect | Cost$ 1 G | Name$ Tanglesap Effect | StaticAbilities$ STPrevent | AILogic$ Fog | SpellDescription$ Prevent all combat damage that would be dealt this turn by creatures without trample.
 SVar:STPrevent:Mode$ PreventDamage | Source$ Creature.withoutTrample | CombatDamage$ True | Description$ Prevent all combat damage that would be dealt this turn by creatures without trample.
-SVar:RemAIDeck:True
 SVar:Rarity:Common
 SVar:Picture:http://www.wizards.com/global/images/magic/general/tanglesap.jpg
 SetInfo:ZEN|Common|http://magiccards.info/scans/en/zen/186.jpg
diff --git a/src/main/java/forge/card/abilityfactory/AbilityFactoryEffect.java b/src/main/java/forge/card/abilityfactory/AbilityFactoryEffect.java
index f77cfdb5439..dc309935ed1 100644
--- a/src/main/java/forge/card/abilityfactory/AbilityFactoryEffect.java
+++ b/src/main/java/forge/card/abilityfactory/AbilityFactoryEffect.java
@@ -7,6 +7,7 @@ import forge.AllZone;
 import forge.AllZoneUtil;
 import forge.Card;
 import forge.CardList;
+import forge.CombatUtil;
 import forge.Command;
 import forge.ComputerUtil;
 import forge.Constant;
@@ -208,9 +209,22 @@ public class AbilityFactoryEffect {
                 if(phase.isPlayerTurn(AllZone.getComputerPlayer()) 
                         || phase.isAfter(Constant.Phase.DRAW)) {
                     return false;
-                } else {
-                    randomReturn = true;
                 }
+                randomReturn = true;
+            } else if (logic.equals("Fog")) {
+                if (AllZone.getPhase().isPlayerTurn(sa.getActivatingPlayer())) {
+                    return false;
+                }
+                if (!AllZone.getPhase().is(Constant.Phase.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)) {
+                    return false;
+                }
+                if (AllZone.getStack().size() != 0) {
+                    return false;
+                }
+                if (AllZone.getPhase().isPreventCombatDamageThisTurn()) {
+                    return false;
+                }
+                randomReturn = CombatUtil.lifeInDanger(AllZone.getCombat());
             }
         }