Kina, Titan of Sea's Suffering

When Kina enters the battlefield, sacrifice it
unless it escaped.
Whenever Kina enters the battlefield or attacks,
each opponent reveals the top card of their
library and loses life equal to the revealed card's
converted mana cost, then put that card into the graveyard.
Escape- {u}{u}{b}{b}, exile five other cards from
your graveyard.