diff --git a/res/cardsfolder/tainted_field.txt b/res/cardsfolder/tainted_field.txt
index 0926c69da73..1449e6b0fbe 100644
--- a/res/cardsfolder/tainted_field.txt
+++ b/res/cardsfolder/tainted_field.txt
@@ -5,7 +5,6 @@ Text:no text
 A:AB$ Mana | Cost$ T | Produced$ 1 | SpellDescription$ Add 1 to your mana pool.
 A:AB$ Mana | Cost$ T | Produced$ W | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add W to your mana pool. Activate this ability only if you control a Swamp.
 A:AB$ Mana | Cost$ T | Produced$ B | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add B to your mana pool. Activate this ability only if you control a Swamp.
-SVar:RemAIDeck:True
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/tainted_field.jpg
 SetInfo:TOR|Uncommon|http://magiccards.info/scans/en/tr/140.jpg
diff --git a/res/cardsfolder/tainted_isle.txt b/res/cardsfolder/tainted_isle.txt
index 91d09a6419c..4f90b6a257b 100644
--- a/res/cardsfolder/tainted_isle.txt
+++ b/res/cardsfolder/tainted_isle.txt
@@ -5,7 +5,6 @@ Text:no text
 A:AB$ Mana | Cost$ T | Produced$ 1 | SpellDescription$ Add 1 to your mana pool.
 A:AB$ Mana | Cost$ T | Produced$ U | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add U to your mana pool. Activate this ability only if you control a Swamp.
 A:AB$ Mana | Cost$ T | Produced$ B | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add B to your mana pool. Activate this ability only if you control a Swamp.
-SVar:RemAIDeck:True
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/tainted_isle.jpg
 SetInfo:TOR|Uncommon|http://magiccards.info/scans/en/tr/141.jpg
diff --git a/res/cardsfolder/tainted_peak.txt b/res/cardsfolder/tainted_peak.txt
index c7826235f26..bfdbfb2c379 100644
--- a/res/cardsfolder/tainted_peak.txt
+++ b/res/cardsfolder/tainted_peak.txt
@@ -5,7 +5,6 @@ Text:no text
 A:AB$ Mana | Cost$ T | Produced$ 1 | SpellDescription$ Add 1 to your mana pool.
 A:AB$ Mana | Cost$ T | Produced$ B | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add B to your mana pool. Activate this ability only if you control a Swamp.
 A:AB$ Mana | Cost$ T | Produced$ R | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add R to your mana pool. Activate this ability only if you control a Swamp.
-SVar:RemAIDeck:True
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/tainted_peak.jpg
 SetInfo:TOR|Uncommon|http://magiccards.info/scans/en/tr/142.jpg
diff --git a/res/cardsfolder/tainted_wood.txt b/res/cardsfolder/tainted_wood.txt
index 6d577af4197..716d97d9f7c 100644
--- a/res/cardsfolder/tainted_wood.txt
+++ b/res/cardsfolder/tainted_wood.txt
@@ -5,7 +5,6 @@ Text:no text
 A:AB$ Mana | Cost$ T | Produced$ 1 | SpellDescription$ Add 1 to your mana pool.
 A:AB$ Mana | Cost$ T | Produced$ B | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add B to your mana pool. Activate this ability only if you control a Swamp.
 A:AB$ Mana | Cost$ T | Produced$ G | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add G to your mana pool. Activate this ability only if you control a Swamp.
-SVar:RemAIDeck:True
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/tainted_wood.jpg
 SetInfo:TOR|Uncommon|http://magiccards.info/scans/en/tr/143.jpg
diff --git a/src/forge/ComputerUtil.java b/src/forge/ComputerUtil.java
index ab13999c0b0..9a6632316a8 100644
--- a/src/forge/ComputerUtil.java
+++ b/src/forge/ComputerUtil.java
@@ -716,6 +716,11 @@ public class ComputerUtil
 		ArrayList<Ability_Mana> mana = land.getManaAbility();
 		
 		for(Ability_Mana m : mana){
+			
+			//if the mana ability is not avaiable move to the next one
+			m.setActivatingPlayer(land.getController());
+			if (!m.canPlay()) continue;
+			
 			if (!colors.contains(Constant.Color.Black) && m.isBasic() && m.mana().equals("B"))
 				colors.add(Constant.Color.Black);
 			if (!colors.contains(Constant.Color.White) && m.isBasic() && m.mana().equals("W"))