Stellarlune

When this card enters the battlefield, take all
lands you control out of the game.
Target creature you control gets +X/+X each
upkeep.
{w}{w}{b}{b}: That creature gains indestructible
and Hexproof.
{1}{w}{w}{u}{u}{b}{r}{g}: You get an emblem
with "Your opponent can't win and you can't
lose." If this sorcery leaves the battlefield,
take it out of the game and you lose all
emblems. Destroy all lands you control.