Dark Ritual

Myr Retriever

When this creature dies, return another target artifact card from your graveyard to your hand.

Swamp

Altar of the Brood

Whenever another permanent you control enters, each opponent mills a card.

Fatal Push

Destroy target creature if it has mana value 2 or less.
Revolt — Destroy that creature if it has mana value 4 or less instead if a permanent left the battlefield under your control this turn.

Heartless Summoning

Creature spells you cast cost {2} less to cast.
Creatures you control get -1/-1.

Grasp of Darkness

Target creature gets -4/-4 until end of turn.

Go for the Throat

Thoughtseize

Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.