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.

Snow-Covered Swamp

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

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.

Massacre

If an opponent controls a plains and you control a swamp, you may play Massacre without paying its mana cost. All creatures get -2/-2 until end of turn.

Chain of Vapor

Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land. If the player does, he or she may copy this spell and may choose a new target for that copy.

Ponder

Flusterstorm

Counter target instant or sorcery spell unless its controller pays {1}. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Abrupt Decay

Abrupt Decay can't be countered by spells or abilities. Destroy target nonland permanent with converted mana cost 3 or less.

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.

Hurkyl's Recall

Return all artifacts target player owns to his or her hand.

Thoughtseize

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

Empty the Warrens

Put two 1/1 red Goblin creature tokens into play. Storm (When you play this spell, copy it for each spell played before it this turn.)

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

Echoing Truth

Preordain

Duress

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

Island

({T}: Add {U}.)