diff --git a/.gitattributes b/.gitattributes
index e3fe35824b8..f2acb011dc9 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3718,6 +3718,7 @@ res/cardsfolder/maritime_guard.txt -text svneol=native#text/plain
 res/cardsfolder/marjhan.txt svneol=native#text/plain
 res/cardsfolder/mark_of_asylum.txt -text svneol=native#text/plain
 res/cardsfolder/mark_of_mutiny.txt svneol=native#text/plain
+res/cardsfolder/mark_of_the_oni.txt -text svneol=native#text/plain
 res/cardsfolder/maro.txt -text svneol=native#text/plain
 res/cardsfolder/marrow_gnawer.txt -text svneol=native#text/plain
 res/cardsfolder/marsh_boa.txt -text svneol=native#text/plain
diff --git a/res/cardsfolder/mark_of_the_oni.txt b/res/cardsfolder/mark_of_the_oni.txt
new file mode 100644
index 00000000000..6ffae4ad5f6
--- /dev/null
+++ b/res/cardsfolder/mark_of_the_oni.txt
@@ -0,0 +1,12 @@
+Name:Mark of the Oni
+ManaCost:2 B
+Types:Enchantment Aura
+Text:no text
+K:Enchant creature
+K:enControlCreature
+T:Mode$ Phase | Phase$ End of Turn | TriggerZones$ Battlefield | IsPresent$ Demon.YouCtrl | PresentCompare$ EQ0 | Execute$ TrigSac | TriggerDescription$ At the beginning of the end step, if you control no Demons, sacrifice CARDNAME.
+SVar:TrigSac:AB$Sacrifice | Cost$ 0 | Defined$ Self
+SVar:RemAIDeck:True
+SVar:Rarity:Uncommon
+SVar:Picture:http://www.wizards.com/global/images/magic/general/mark_of_the_oni.jpg
+End
\ No newline at end of file