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.

Counterbalance

Whenever an opponent plays a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same converted mana cost as the revealed card.

Unexpectedly Absent

Put target nonland permanent into its owner's library just beneath the top X cards of that library.

Sensei's Divining Top

{1}: Look at the top three cards of your library, then put them back in any order. {T}: Draw a card, then put Sensei's Divining Top on top of its owner's library.

Snow-Covered Island

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

Stony Silence

Activated abilities of artifacts can't be activated.

Mana Drain

Counters target spell. At the beginning of your next main phase, add {X} to your mana pool, where X is the casting cost of target spell.

Mental Misstep

({U/P} can be paid with either {U} or 2 life.) Counter target spell with converted mana cost 1.

Standstill

When a player plays a spell, sacrifice Standstill. If you do, then each of that player's opponents draws three cards.

Thirst for Knowledge

Draw three cards. Then discard two cards unless you discard an artifact card.

Mishra's Factory

{T}: Add one colorless mana to your mana pool. {1}: Mishra's Factory becomes an Assembly Worker, a 2/2 artifact creature, until end of turn. Assembly Worker still counts as a land but cannot be tapped for mana the turn it comes into play. {T}: Target Assembly Worker gets +1/+1 until end of turn.

Detention Sphere

When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent. When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.

Rest in Peace

When Rest in Peace enters the battlefield, exile all cards from all graveyards. If a card or token would be put into a graveyard from anywhere, exile it instead.

Supreme Verdict

Supreme Verdict can't be countered. Destroy all creatures.

Decree of Justice

Put X 4/4 white Angel creature tokens with flying into play. Cycling {2}{W} When you cycle Decree of Justice, you may pay {X}. If you do, put X 1/1 white Soldier creature tokens into play.

Mox Sapphire

Add 1 blue mana to your mana pool. Tapping this artifact can be played as an interrupt.

Time Walk

Take an extra turn after this one.

Mox Jet

Add 1 black mana to your mana pool. Tapping this artifact can be played as an interrupt.

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.

Balance

Whichever player has more lands in play must discard enough lands of his or her choice to equalize the number of lands both players have in play. Cards in hand and creatures in play must be equalized the same way. Creatures lost in this manner may not be regenerated.

Mox Pearl

Add 1 white mana to your mana pool. Tapping this artifact can be played as an interrupt.

Ancestral Recall

Draw 3 cards or force opponent to draw 3 cards.

Swords to Plowshares

Target creature is removed from game entirely; return to owner's deck only when game is over. Creature's controller gains life points equal to creature's power.

Black Lotus

Adds 3 mana of any single color of your choice to your mana pool, then is discarded. Tapping this artifact can be played as an interrupt.

Arcane Laboratory

Each player cannot play more than one spell each turn.

Celestial Colonnade

Celestial Colonnade enters the battlefield tapped. {T}: Add {W} or {U} to your mana pool. {3}{W}{U}: Until end of turn, Celestial Colonnade becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.

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.

Mindbreak Trap

If an opponent cast three or more spells this turn, you may pay {0} rather than pay Mindbreak Trap's mana cost. Exile any number of target spells.

Flooded Strand

Misty Rainforest

Scalding Tarn

Gideon, Ally of Zendikar

Brainstorm

Repeal

Sol Ring

Strip Mine

Wasteland

Hallowed Fountain

({T}: Add {W} or {U}.) As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.