Infernal Tutor

Reveal a card from your hand. Search your library for a card with the same name as that card, reveal it, put it into your hand, then shuffle your library. Hellbent — If you have no cards in hand, instead search your library for a card, put it into your hand, then shuffle your library.

Past in Flames

Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Dark Petition

Search your library for a card and put that card into your hand. Then shuffle your library. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, add {B}{B}{B} to your mana pool.

Lion's Eye Diamond

Sacrifice Lion's Eye Diamond, Discard your hand: Add three mana of any one color to your mana pool. Play this ability as a mana source.

Ponder

Tendrils of Agony

Target player loses 2 life and you gain 2 life. Storm (When you play this spell, copy it for each spell played before it this turn. You may choose new targets for the copies.)

Xantid Swarm

FlyingWhenever Xantid Swarm attacks, defending player can't play spells this turn.

Ad Nauseam

Reveal the top card of your library and put that card into your hand. You lose life equal to its converted mana cost. You may repeat this process any number of times.

Lotus Petal

Sacrifice Lotus Petal: Add one mana of any color to your mana pool. Play this ability as a mana source.

Thoughtseize

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

Cabal Ritual

Add {B}{B}{B} to your mana pool. Threshold - Instead add {B}{B}{B}{B}{B} to your mana pool. (You have threshold if seven or more cards are in your graveyard.)

Volcanic Island

Counts as both islands and mountains and is affected by spells that affect either. Tap to add either {U} or {R} to your mana pool.

Bayou

Counts as both swamp and forest and is affected by spells that affect either. Tap to add either {B} or {G} to your mana pool.

Underground Sea

Counts as both swamp and islands and is affected by spells that affect either. Tap to add either {B} or {U} to your mana pool.

Dark Ritual

Add {B}{B}{B} to your mana pool.

Rain of Filth

Each land you control gains "Sacrifice this land: Add {B} to your mana pool" until end of turn.

Bloodstained Mire

Misty Rainforest

Polluted Delta

Brainstorm

Preordain

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Island

({T}: Add {U}.)

Swamp

({T}: Add {B}.)