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.

Vedalken Aethermage

Flash (You may play this spell any time you could play an instant.) When Vedalken Aethermage comes into play, return target Sliver to its owner's hand. Wizardcycling {3} ({3}, Discard this card: Search your library for a Wizard card, reveal it, and put it into your hand. Then shuffle your library.)

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.

Sower of Temptation

Flying When Sower of Temptation comes into play, gain control of target creature as long as Sower of Temptation remains in play.

Aether Vial

At the beginning of your upkeep, you may put a charge counter on ?ther Vial. {T}: You may put a creature card with converted mana cost equal to the number of charge counters on ?ther Vial from your hand onto the battlefield.

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}.

Patron Wizard

Tap an untapped Wizard you control: Counter target spell unless its controller pays {1}.

Riptide Laboratory

{T}: Add {1} to your mana pool. {1}{U}, {T}: Return target Wizard you control to its owner's hand.

Yixlid Jailer

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Mutavault

{T}: Add {1} to your mana pool. {1}: Mutavault becomes a 2/2 creature with all creature types until end of turn. It's still a land.

Umezawa's Jitte

Whenever equipped creature deals combat damage, put two charge counters on Umezawa's Jitte. Remove a charge counter from Umezawa's Jitte: Choose one — Equipped creature gets +2/+2 until end of turn; or target creature gets -1/-1 until end of turn; or you gain 2 life. Equip {2}

Vendilion Clique

Flash Flying When Vendilion Clique enters the battlefield, look at target player's hand. You may choose a nonland card from it. If you do, that player reveals the chosen card, puts it on the bottom of his or her library, then draws a card.

Dark Confidant

At the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its converted mana cost.

Izzet Staticaster

Flash (You may cast this spell any time you could cast an instant.) Haste {T}: Izzet Staticaster deals 1 damage to target creature and each other creature with the same name as that creature.

Cursecatcher

Sacrifice Cursecatcher: Counter target instant or sorcery spell unless its controller pays {1}.

Master of Waves

Protection from red Elemental creatures you control get +1/+1. When Master of Waves enters the battlefield, put a number of 1/0 blue Elemental creature tokens onto the battlefield equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Sage of Epityr

When Sage of Epityr comes into play, look at the top four cards of your library, then put them back in any order.

Voidmage Prodigy

{U}{U}, Sacrifice a Wizard: Counter target spell. Morph {U} (You may play this face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Grim Lavamancer

{R}, {T}, Remove two cards in your graveyard from the game: Grim Lavamancer deals 2 damage to target creature or player.

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.

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.

Flooded Strand

Polluted Delta

Tempest Caller

2UU

Island

({T}: Add {U}.)