Serum Powder

{T}: Add {1} to your mana pool. Any time you could mulligan and Serum Powder is in your hand, you may remove your hand from the game, then draw that many cards. (You can do this in addition to taking mulligans.)

City of Traitors

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

Sphere of Resistance

All spells cost an additional {1} to play.

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.)

The Tabernacle at Pendrell Vale

All creatures now require an upkeep cost of {1} in addition to any other upkeep costs they may have. If the upkeep cost for a creature is not paid, the creature is destroyed.

Buried Ruin

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

Rishadan Port

{T}: Add one colorless mana to your mana pool. {1}, {T}: Tap target land.

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.

Tangle Wire

Fading 4 (This artifact comes into play with four fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.) At the beginning of each player's upkeep, that player taps an artifact, creature, or land he or she controls for each fade counter on Tangle Wire.

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.

Ensnaring Bridge

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

Mox Diamond

When Mox Diamond comes into play, choose and discard a land card or sacrifice Mox Diamond. {T}: Add one mana of any color to your mana pool. Play this ability as a mana source.

Crucible of Worlds

You may play land cards from your graveyard.

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.

Defense Grid

During each player's turn, spells played by another player cost an additional {3}.

Smokestack

During your upkeep, you may put a soot counter on Smokestack. During each player's upkeep, that player sacrifices a permanent for each soot counter on Smokestack.

Ancient Tomb

Wasteland

Inventors' Fair

Walking Ballista

Grafdigger's Cage

Creature cards in graveyards and libraries can't enter the battlefield. Players can't cast spells from graveyards or libraries.

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.