Otherplane

({t}: Add {w} or {u} to your mana pool.)
Otherplane enters the battlefield tapped.
Whenever Otherplane untaps each opponent gains 1 life.
At the beginning of each player's upkeep, that player puts a 1/1 white and blue Spirit creature token with flying and haste onto the battlefield. At the end of that player's end step they exile that token.