Janus, God of Beginnings

Indestructible
Spells in your hand have "Suspend 3-{g/u}{g/w}{w/u}"
Whenever a time counter is removed from a card, you gain 1 life.
Gates you control have "{t}: Add one mana of any color to your mana pool."
If you control at least 2 Gates, you may pay {u}{w}{g}. If you do, you win the game.