Whenever a creature an opponent controls dies, exile it with a hit counter on it.

Assassins, Mercenaries, and Rogues you control have deathtouch and "Whenever this creature deals combat damage to a player, you may remove a hit counter from a card that player owns in exile. If you do, draw a card and create two Treasure tokens."

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.)

Destroy all creatures. If the gift was promised, return a creature card put into your graveyard this way to the battlefield under your control.