clearing the field

Each player chooses a number of permanents they control equal to the number of permanents controlled by the player who controls the fewest, then sacrifices the rest. Each player discards cards the same way.

Exile each creature you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

Each land is a Swamp in addition to its other land types.

All Swamps are 1/1 black creatures that are still lands.

White spells you cast cost less to cast.

During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments.