Necroskitter [Eventide] Mirrodin Besieged destroy all non-Wall creatures that

destroy all non-Wall creatures that player controls that didn't attack this turn

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {3}{U}{U} You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost

using their libraries as their decks

before attackers are declared

At the beginning of the next end step

Necroskitter [Eventide] Mirrodin Besieged destroy all non-Wall creatures thatSet: Eventide Type: Creature Elemental Rarity: Rare Cost: {1}{B}{B} Wither (This deals damage to creatures in the form of 1 1 counters.) Whenever a creature an opponent controls with a 1 1 counter on it dies, you may return that card to the battlefield under your control.