Cthulhu

Deathtouch, hexproof, menace, islandwalk
When Cthulhu enters the battlefield or attacks
target player sacrifice two permanents and mills
15 cards.
As long as Cthulhu is tapped you can't cast spells.
Retrace
Ph'nglui mglw'nafh, Cthulhu R'lyeh, wgah'nagl
fhtagn