Intimidating Warcall

Whenever one or more creatures you control
attack, for each player defending player, choose a creature that player controls. Chosen creatures
can't block and their abilities can't be activated
this combat.
{2}{r}{r}, Sacrifice Intimidating Warcall:
Creatures you control gain haste until end of
combat. Creatures your opponents control can't
block and their abilities can't be activated this
combat. Activate only at the beginning of combat
on your turn.