Delicate Balance

Tether {x}{w}(If this spell is cast from your hand, you
may pay {x}{w} to have each player exile X total artifacts, enchantments and/or lands they control.)
Delicate Balance deals X damage to each creature without Flying. Exile Delicate Balance.
At the beginning of each player's end step, that
player may put a permanent tethered to Delicate Balance in the exile zone onto the battlefield
under their control.