The Moon, Termina's Cataclysm

The Moon, Termina's Cataclysm can't be played or be put on the battlefield unless you control four other lands.

At the beginning of your first main phase, put a day counter on The Moon. Day counters can't be proliferated. When the third day counter is put on the moon, destroy all permanents and you win the game.

Song of Time — At the beginning of your upkeep, each opponent votes for play or don't play. If play wins, remove all day counters from The Moon and create three treasures.