Godheart the Worldpeircer

Indestructible, hexproof from instants and sorceries, trample
All creatures your opponents control must block Godheart, the Worldpeircer when it attacks.
If a creature dealt damage by Godheart would die
this turn you may search your library for a basic
land card and put it onto the battlefield, if your
library contains no lands, you win the game.
Legend says that Ke'Kogoeh formed his crystal in the
image of this beast's horn.