diff --git a/.gitattributes b/.gitattributes
index 347e0581e07..fe931cafa5a 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -7409,6 +7409,7 @@ res/cardsfolder/s/sinew_sliver.txt svneol=native#text/plain
 res/cardsfolder/s/singe.txt svneol=native#text/plain
 res/cardsfolder/s/singe_mind_ogre.txt svneol=native#text/plain
 res/cardsfolder/s/singing_tree.txt svneol=native#text/plain
+res/cardsfolder/s/sinister_strength.txt -text svneol=unset#text/plain
 res/cardsfolder/s/sink_into_takenuma.txt -text
 res/cardsfolder/s/sinkhole.txt svneol=native#text/plain
 res/cardsfolder/s/sinking_feeling.txt svneol=native#text/plain
diff --git a/res/cardsfolder/s/sinister_strength.txt b/res/cardsfolder/s/sinister_strength.txt
new file mode 100644
index 00000000000..ff28166843e
--- /dev/null
+++ b/res/cardsfolder/s/sinister_strength.txt
@@ -0,0 +1,10 @@
+Name:Sinister Strength
+ManaCost:1 B
+Types:Enchantment Aura
+Text:no text
+K:Enchant creature
+A:SP$ Attach | Cost$ 1 B | ValidTgts$ Creature | AILogic$ Pump
+S:Mode$ Continuous | Affected$ Creature.EnchantedBy | AddPower$ 3 | AddToughess$ 1 | SetColor$ Black | Description$ Enchanted creature gets +3/+1 and is black.
+SVar:Rarity:Common
+SVar:Picture:http://www.wizards.com/global/images/magic/general/sinister_strength.jpg
+End
\ No newline at end of file