Cthulhu, The Great Dreamer

Eminence - As long as Cthulhu, The Great Dreamer is in the command zone or on the battlefield, other God spells you cast cost {1} less to cast.
Flying, Hexproof, Islandwalk
Whenever you put a -1/-1 counter on a
creature opponents put the top card
of their library into their graveyard.