Higavak, Rippling Wrath

When Higavak enters the battlefield, if it was
cast from your hand, deal X damage to each
opponent and each creature they control where
X is the number of cards in their hand.
Instants and sorceries you control have ripple.
{5}{b}{b}: Return Higavak, Rippling Wrath from
your graveyard to the battlefield. It gains haste
and unblockable. Exile it at your next end step.