diff --git a/projects/mtg/bin/Res/test/_tests.txt b/projects/mtg/bin/Res/test/_tests.txt
index ce6ade65d..d4510ec5f 100644
--- a/projects/mtg/bin/Res/test/_tests.txt
+++ b/projects/mtg/bin/Res/test/_tests.txt
@@ -2,6 +2,7 @@
 #Generic engine features
 ########################
 generic/attacks_each_turn.txt
+generic/becomes_transform_i559.txt
 generic/bushido_1.txt
 generic/bushido_2.txt
 generic/cycling.txt
diff --git a/projects/mtg/bin/Res/test/generic/becomes_transform_i559.txt b/projects/mtg/bin/Res/test/generic/becomes_transform_i559.txt
new file mode 100644
index 000000000..6464d11af
--- /dev/null
+++ b/projects/mtg/bin/Res/test/generic/becomes_transform_i559.txt
@@ -0,0 +1,26 @@
+#NAME: Niveous Wisps + Grizzly Bears + Execute=FAIL!
+#Card Explanation:
+#Niveous Wisps: (target creature becomes white)
+#Execute: (destroy target white creature)
+#BUG: Grizzly Bears cannot be targeted by Execute though it should be able to.
+#This is because Grizzly Bears didn't become white.
+# see http://code.google.com/p/wagic/issues/detail?id=559
+[INIT]
+firstmain
+[PLAYER1]
+hand:Niveous Wisps,Execute
+inplay:Grizzly Bears
+manapool:{W}{B}{2}
+[PLAYER2]
+[DO]
+Niveous Wisps
+Grizzly Bears
+Execute
+Grizzly Bears
+[ASSERT]
+firstmain
+[PLAYER1]
+graveyard:Niveous Wisps,Execute,Grizzly Bears
+manapool={0}
+[PLAYER2]
+[END]
diff --git a/projects/mtg/src/AllAbilities.cpp b/projects/mtg/src/AllAbilities.cpp
index 1e0ccb04b..6fb52ecf3 100644
--- a/projects/mtg/src/AllAbilities.cpp
+++ b/projects/mtg/src/AllAbilities.cpp
@@ -2095,7 +2095,7 @@ void PopulateColorIndexVector(list<int>& colors, const string& colorStringList,
         for (int colorIndex = Constants::MTG_COLOR_ARTIFACT; colorIndex < Constants::MTG_NB_COLORS; ++colorIndex)
         {
             // if the text is not a basic ability but contains a valid color add it to the color vector
-            if ((Constants::GetBasicAbilityIndex(*iter) != -1)
+            if ((Constants::GetBasicAbilityIndex(*iter) == -1)
                     && ((*iter).find(Constants::MTGColorStrings[colorIndex]) != string::npos))
                 colors.push_back(colorIndex);
         }