Memory Leak

Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it.
Cycling {1} ({1}, Discard this card: Draw a card.)

Mutual Destruction

This spell has flash as long as you control a permanent with flash.
As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.

Mythos of Nethroi

Destroy target nonland permanent if it's a creature or if {G}{W} was spent to cast this spell.

Nightsquad Commando

Human Soldier

When this creature enters, if you attacked this turn, create a 1/1 white Human Soldier creature token.

Serrated Scorpion

When this creature dies, it deals 2 damage to each opponent and you gain 2 life.

Ikoria: Lair of Behemoths