Volos, Pure Savagery

Vigilance, trample, haste
Whenever an Ox you control attacks, you may
pay {2}{r}. If you do, target creature an opponent controls blocks it this turn if able. Untap that creature. Other creatures that player controls
can't block it this turn.
Whenever a creature dealt damage by an Ox you control this turn dies, put a +1/+1 counter on
that Ox.