Kiki, Relentless Destruction

When Kiki, Relentless Destruction enters the battlefield, choose artifact, creature, enchantment,
or nonbasic land. Flip a coin. If you win the flip, destroy all permanents of the chosen type your opponents control. If you lose the flip, destroy all permanents of the chosen type you control except
Kiki, Relentless Destruction.
When Kiki, Relentless Destruction deals combat
damage to a player, return it to its owners hand.