Cthulhu, The Great Dreamer

Flying, indestructible, double-strike, lifelink, trample, islandwalk, swampwalk
When Cthulhu, The Great Dreamer enters the battlefield you win the game.
"Ia! Ia! Cthulhu Fthagn! Ph'nglui mglw'nfah Cthulhu R'lyeh wgah'nagl fhtagn! "