Force of Will

You may pay 1 life and remove a blue card in your hand from the game instead of paying Force of Will's casting cost. Effects that prevent or redirect damage cannot be used to counter this loss of life. Counter target spell.

Cavern of Souls

As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {1} to your mana pool. {T}: Add one mana of any color to your mana pool. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Toxic Deluge

As an additional cost to cast Toxic Deluge, pay X life. All creatures get -X/-X until end of turn.

Containment Priest

Flash If a nontoken creature would enter the battlefield and it wasn't cast, exile it instead.

City of Traitors

If you play any land, sacrifice City of Traitors. {T}: Add two colorless mana to your mana pool.

Venser, Shaper Savant

Flash (You may play this spell any time you could play an instant.) When Venser, Shaper Savant comes into play, return target spell or permanent to its owner's hand.

Unburial Rites

Return target creature card from your graveyard to the battlefield. Flashback {3}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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.

Auriok Salvagers

{1}{W}: Return target artifact card with converted mana cost 1 or less from your graveyard to your hand.

Gifts Ungiven

Search your library for up to four cards with different names and reveal them. Target opponent chooses two of those cards. Put the chosen cards into your graveyard and the rest into your hand. Then shuffle your library.

Chalice of the Void

Chalice of the Void enters the battlefield with X charge counters on it. Whenever a player casts a spell with converted mana cost equal to the number of charge counters on Chalice of the Void, counter that spell.

Engineered Explosives

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Engineered Explosives.

Daze

You may return an island you control to its owner's hand instead of paying Daze's mana cost. Counter target spell unless its controller pays {1}.

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.)

Karakas

{T}: Add {W} to your mana pool. {T}: Return target legendary creature to its owner's hand.

Trinket Mage

When Trinket Mage enters the battlefield, you may search your library for an artifact card with converted mana cost 1 or less, reveal that card, and put it into your hand. If you do, shuffle your library.

Faerie Macabre

Flying Discard Faerie Macabre: Remove up to two target cards in graveyards from the game.

Ethersworn Canonist

Each player who has played a nonartifact spell this turn can't play additional nonartifact spells.

Ensnaring Bridge

Each creature with power greater than the number of cards in your hand cannot attack.

Intuition

Search your library for any three cards and reveal them to target opponent. He or she chooses one. Put that card into your hand and the rest into your graveyard. Shuffle your library afterwards.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Remove target player's graveyard from the game.

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.

Tundra

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

Jace, the Mind Sculptor

+2: Look at the top card of target player's library. You may put that card on the bottom of that player's library. 0: Draw three cards, then put two cards from your hand on top of your library in any order. -1: Return target creature to its owner's hand. -12: Exile all cards from target player's library, then that player shuffles his or her hand into his or her library.

Flooded Strand

Marsh Flats

Seal of Cleansing

Ancient Tomb

Walking Ballista

Cast Out

Disenchant

Destroy target artifact or enchantment.

Plains

({T}: Add {W}.)

Island

({T}: Add {U}.)