Sulfur Falls

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain. {T}: Add {U} or {R} to your mana pool.

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.

Hangarback Walker

Hangarback Walker enters the battlefield with X +1/+1 counters on it. When Hangarback Walker dies, put a 1/1 colorless Thopter artifact creature token with flying onto the battlefield for each +1/+1 counter on Hangarback Walker.{1}, {T}: Put a +1/+1 counter on Hangarback Walker.

Pia and Kiran Nalaar

When Pia and Kiran Nalaar enters the battlefield, put two 1/1 colorless Thopter artifact creature tokens with flying onto the battlefield. {2}{R}, Sacrifice an artifact: Pia and Kiran Nalaar deals 2 damage to target creature or player.

Thopter Spy Network

At the beginning of your upkeep, if you control an artifact, put a 1/1 colorless Thopter artifact creature token with flying onto the battlefield. Whenever one or more artifact creatures you control deal combat damage to a player, draw a card.

Welding Jar

Sacrifice Welding Jar: Regenerate target artifact.

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.

Pyrite Spellbomb

{R}, Sacrifice Pyrite Spellbomb: Pyrite Spellbomb deals 2 damage to target creature or player. {1}, Sacrifice Pyrite Spellbomb: Draw a card.

Vedalken Shackles

You may choose not to untap Vedalken Shackles during your untap step. {2}, {T}: Gain control of target creature with power less than or equal to the number of Islands you control for as long as Vedalken Shackles remains tapped.

Darksteel Citadel

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

Spellskite

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

Simian Spirit Guide

Remove Simian Spirit Guide in your hand from the game: Add {R} to your mana pool.

Izzet Charm

Choose one — Counter target noncreature spell unless its controller pays {2}; or Izzet Charm deals 2 damage to target creature; or draw two cards, then discard two cards.

Tezzeret the Seeker

+1: Untap up to two target artifacts. -X: Search your library for an artifact card with converted mana cost X or less and put it into play. Then shuffle your library. -5: Artifacts you control become 5/5 artifact creatures until end of turn.

Ensnaring Bridge

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

Pithing Needle

As Pithing Needle comes into play, name a card. Activated abilities of sources with the chosen name can't be played unless they're mana abilities.

Blood Moon

All non-basic lands are now basic mountains.

Anger of the Gods

Anger of the Gods deals 3 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.

Swan Song

Counter target enchantment, instant, or sorcery spell. Its controller puts a 2/2 blue Bird creature token with flying onto the battlefield.

Academy Ruins

{T}: Add {1} to your mana pool. {1}{U}, {T}: Put target artifact card in your graveyard on top of your library.

Sudden Shock

Split second (As long as this spell is on the stack, players can't play spells or activated abilities that aren't mana abilities.) Sudden Shock deals 2 damage to target creature or player.

Wipe Away

Split second (As long as this spell is on the stack, players can't play spells or activated abilities that aren't mana abilities.) Return target permanent to its owner's hand.

Spreading Seas

Enchant land When Spreading Seas enters the battlefield, draw a card. Enchanted land is an Island.

Flooded Strand

Polluted Delta

Scalding Tarn

Steam Vents

Negate

Counter target noncreature spell.

Island

({T}: Add {U}.)

Mountain

({T}: Add {R}.)