diff --git a/projects/mtg/include/MTGDefinitions.h b/projects/mtg/include/MTGDefinitions.h
index 90c9a29b7..01536f659 100644
--- a/projects/mtg/include/MTGDefinitions.h
+++ b/projects/mtg/include/MTGDefinitions.h
@@ -211,8 +211,9 @@ class Constants
       CANATTACK = 91,
       HYDRA = 92,
       UNDYING = 93,
+      POISONSHROUD = 94,
 
-      NB_BASIC_ABILITIES = 94,
+      NB_BASIC_ABILITIES = 95,
 
 
     RARITY_S = 'S',   //Special Rarity
diff --git a/projects/mtg/src/AllAbilities.cpp b/projects/mtg/src/AllAbilities.cpp
index f3a96245d..da0d94608 100644
--- a/projects/mtg/src/AllAbilities.cpp
+++ b/projects/mtg/src/AllAbilities.cpp
@@ -85,7 +85,9 @@ int AAAlterPoison::resolve()
     Damageable * _target = (Damageable *) getTarget();
     if (_target)
     {
-        _target->poisonCount += poison;
+        Player * pTarget = (Player*)_target;
+        if(!pTarget->inPlay()->hasAbility(Constants::POISONSHROUD) || poison < 0)
+            _target->poisonCount += poison;
     }
     return 0;
 }
diff --git a/projects/mtg/src/Damage.cpp b/projects/mtg/src/Damage.cpp
index 6cdbb9262..253116aa8 100644
--- a/projects/mtg/src/Damage.cpp
+++ b/projects/mtg/src/Damage.cpp
@@ -150,7 +150,8 @@ int Damage::resolve()
     {
         // Poison on player
         Player * _target = (Player *) target;
-        _target->poisonCount += damage;//this will be changed to poison counters.
+        if(!_target->inPlay()->hasAbility(Constants::POISONSHROUD))
+            _target->poisonCount += damage;//this will be changed to poison counters.
         _target->damageCount += damage;
     }
     else if (target->type_as_damageable == DAMAGEABLE_PLAYER && (source->has(Constants::POISONTOXIC) ||
@@ -160,17 +161,20 @@ int Damage::resolve()
         Player * _target = (Player *) target;
         a = target->dealDamage(damage);
         target->damageCount += damage;
-        if (source->has(Constants::POISONTOXIC))
+        if(!_target->inPlay()->hasAbility(Constants::POISONSHROUD))
         {
-            _target->poisonCount += 1;
-        }
-        else if (source->has(Constants::POISONTWOTOXIC))
-        {
-            _target->poisonCount += 2;
-        }
-        else
-        {
-            _target->poisonCount += 3;
+            if (source->has(Constants::POISONTOXIC))
+            {
+                _target->poisonCount += 1;
+            }
+            else if (source->has(Constants::POISONTWOTOXIC))
+            {
+                _target->poisonCount += 2;
+            }
+            else
+            {
+                _target->poisonCount += 3;
+            }
         }
 
     }
diff --git a/projects/mtg/src/MTGDefinitions.cpp b/projects/mtg/src/MTGDefinitions.cpp
index e243b49b5..167db21b3 100644
--- a/projects/mtg/src/MTGDefinitions.cpp
+++ b/projects/mtg/src/MTGDefinitions.cpp
@@ -122,7 +122,8 @@ const char* Constants::MTGBasicAbilities[] = {
     "snowswamplandwalk",
     "canattack",
     "hydra",
-    "undying"
+    "undying",
+    "poisonshroud"
 };
 
 map<string,int> Constants::MTGBasicAbilitiesMap;