Famished Yan Oni

Tainted 2 (This permanent comes into play with
two Taint counter on it. Creatures with 3 or more
Taint counters on them are Corrupt)
Trample
At the beginning of you upkeep, Famished Oni
is not Corrupt, you must sacrifice a creature or
it gains Defender until end of turn.
"Only unwholesomeness can sate it unnatural
hunger."