Defiling Fury

If you control Karng, The Defiler, target opponent discards a card. Karng, The Defiler gains +2/+0 and indestructible until end of turn.

If a creature card is discarded this way, Karng, The Defiler deals damage equal to that creature's power
to any target.

"Fueled by the misery of others, Karng's power knows no bounds."