Executioner Smough

Trample, Menace

If Dragonslayer Ornstein dies while this card is on
the battlefield, this card gains indestructible and
doublestrike until the end of the turn.

{3}{b}{b}: Destroy each creature that has taken
damage this turn. This card gains +2/+0 for each creature that died this way until end of turn.
Parner with Dragonslayer Ornstein