Counterspell

Dusk Legion Zealot

When Dusk Legion Zealot enters, you draw a card and you lose 1 life.

Island

Bone Shards

As an additional cost to cast this spell, sacrifice a creature or discard a card.
Destroy target creature or planeswalker.

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Unsummon

Return target creature to its owner's hand.

Augur of Bolas

When Augur of Bolas enters, look at the top three cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Underground Sea

Ravenous Chupacabra

When Ravenous Chupacabra enters, destroy target creature an opponent controls.

Faerie Seer

Swamp

Murder

Oversold Cemetery

At the beginning of your upkeep, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to your hand.