Mil, Swirling Cosmos

Manadrain (Whenever this creature deals combat
damage to a player, add mana in any combination of
this creatures colors equal to the damage dealt this
way, you dont lose that mana this turn as steps and
phases end.)
Flying, Ward {3}
At the beginning of your end step, you may pay {x}{x}, if you do, each opponent loses X life and
you gain life equal to the amount of life lost this
way.