Shadeclan Knight

Menace, Deathtouch, lifelink
{4}{b}: Corrupt (Pay the corrupt cost, then gain
control of target creature an opponent controls
with power less than or equal to this cards power
until this card leaves the battlefield.
Whenever this creature corrupts another creature, it deals damage equal to the corrupted creatures
power to any target.
Sacrafice a creature: put 2 +1+1 counters on this creature.