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.

City of Traitors

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

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.

Aether Spellbomb

{U}, Sacrifice ?ther Spellbomb: Return target creature to its owner's hand. {1}, Sacrifice ?ther Spellbomb: Draw a card.

Surgical Extraction

({B/P} can be paid with either {B} or 2 life.) Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for any number of cards with the same name as that card and exile them. Then that player shuffles his or her library.

Spellskite

{U/P}: Change a target of target spell or ability to Spellskite. ({U/P} can be paid with either {U} or 2 life.)

Seat of the Synod

(Seat of the Synod isn't a spell.) {T}: Add {U} to your mana pool.

Chrome Mox

Imprint — When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand. {T}: Add one mana of any of the exiled card's colors to your mana pool.

Mox Opal

Metalcraft — {T}: Add one mana of any color to your mana pool. Activate this ability only if you control three or more artifacts.

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.

Painter's Servant

As Painter's Servant comes into play, choose a color. All cards that aren't in play, spells, and permanents are the chosen color in addition to their other colors.

Grindstone

{3}, {T}: Put the top 2 cards of target player's library into that player's graveyard. If both cards share at least one color, repeat this process.

Tormod's Crypt

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

Meekstone

Any creature with power greater than 2 may not be untapped as normal during the untap phase.

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.

Preordain

Ancient Tomb

Walking Ballista

Island

({T}: Add {U}.)