Horrors of War

Whenever a creature dies by combat damage, put
a war counter on Horrors of War.
{1}{r}, {t}, Remove X war counters from Horrors
of War: Gain control of target creature with
mana value X or less until end of turn. Untap it.
It gains haste until end of turn.
{1}{b}{b}, {t}, Remove X war counters from
Horrors of War: Destroy target creature
with mana value X or less.