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.

City of Traitors

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

Staff of Domination

{1}: Untap Staff of Domination. {2}, {T}: You gain 1 life. {3}, {T}: Untap target creature. {4}, {T}: Tap target creature. {5}, {T}: Draw a card.

Trinisphere

As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.)

Sundering Titan

When Sundering Titan enters the battlefield or leaves the battlefield, choose a land of each basic land type, then destroy those lands.

Buried Ruin

{T}: Add {1} to your mana pool. {2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand.

Trading Post

{1}, {T}, Discard a card: You gain 4 life. {1}, {T}, Pay 1 life: Put a 0/1 white Goat creature token onto the battlefield. {1}, {T}, Sacrifice a creature: Return target artifact card from your graveyard to your hand. {1}, {T}, Sacrifice an artifact: Draw a card.

Duplicant

Imprint — When Duplicant comes into play, you may remove target nontoken creature from the game. (The removed card is imprinted on this artifact.) As long as a creature card is imprinted on Duplicant, Duplicant has that card's power, toughness, and creature types. It's still a Shapeshifter.

Blightsteel Colossus

Trample, infect Blightsteel Colossus is indestructible. If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

Spine of Ish Sah

When Spine of Ish Sah enters the battlefield, destroy target permanent. When Spine of Ish Sah is put into a graveyard from the battlefield, return Spine of Ish Sah to its owner's hand.

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.

Darksteel Citadel

Indestructible (Effects that say "destroy" don't destroy this land.) {T}: Add {1} to your mana pool.

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.

All Is Dust

Each player sacrifices all colored permanents he or she controls.

Kuldotha Forgemaster

{T}, Sacrifice three artifacts: Search your library for an artifact card and put it onto the battlefield. Then shuffle your library.

Platinum Emperion

Your life total can't change. (You can't gain or lose life. You can't pay any amount of life except 0.)

Ratchet Bomb

{T}: Put a charge counter on Ratchet Bomb. {T}, Sacrifice Ratchet Bomb: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Ratchet Bomb.

Steel Hellkite

Flying {2}: Steel Hellkite gets +1/+0 until end of turn. {X}: Destroy each nonland permanent with converted mana cost X whose controller was dealt combat damage by Steel Hellkite this turn. Activate this ability only once each turn.

Wurmcoil Engine

Deathtouch, lifelink When Wurmcoil Engine is put into a graveyard from the battlefield, put a 3/3 colorless Wurm artifact creature token with deathtouch and a 3/3 colorless Wurm artifact creature token with lifelink onto the battlefield.

Faerie Macabre

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

Metalworker

{T}: Reveal any number of artifact cards in your hand. Add two colorless mana to your mana pool for each card revealed this way.

Grim Monolith

Grim Monolith does not untap during your untap phase. {4}: Untap Grim Monolith. {T}: Add three colorless mana to your mana pool. Play this ability as a mana source.

Lodestone Golem

Nonartifact spells cost {1} more to cast.

Lightning Greaves

Warping Wail

Ancient Tomb

Wasteland

Inventors' Fair

Walking Ballista

The Immortal Sun

Players can't activate planeswalkers' loyalty abilities. At the beginning of your draw step, draw an additional card. Spells you cast cost {1} less to cast. Creatures you control get +1/+1.

Sorcerous Spyglass

As Sorcerous Spyglass enters the battlefield, look at an opponent's hand, then choose any card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.