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.

Sudden Demise

Choose a color. Sudden Demise deals X damage to each creature of the chosen color.

Pyrokinesis

You may exile a red card from your hand rather than pay Pyrokinesis's mana cost. Pyrokinesis deals 4 damage divided as you choose among any number of target creatures.

Gempalm Incinerator

Cycling {1}{R} ({1}{R}, Discard this card from your hand: Draw a card.) When you cycle Gempalm Incinerator, you may have it deal X damage to target creature, where X is the number of Goblins in play.

Tarfire

Tarfire deals 2 damage to target creature or player.

Thorn of Amethyst

Noncreature spells cost {1} more to play.

Goblin Chieftain

Haste (This creature can attack and {T} as soon as it comes under your control.) ;Other Goblin creatures you control get +1/+1 and have haste.

Rishadan Port

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

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.

Kiki-Jiki, Mirror Breaker

Haste {T}: Put a token that's a copy of target nonlegendary creature you control onto the battlefield. That token has haste. Sacrifice it at the beginning of the next end step.

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.

Goblin Sharpshooter

Goblin Sharpshooter doesn't untap during your untap step. Whenever a creature is put into a graveyard from play, untap Goblin Sharpshooter. {T}: Goblin Sharpshooter deals 1 damage to target creature or player.

Stingscourger

Echo {3}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When Stingscourger comes into play, return target creature an opponent controls to its owner's hand.

Sparksmith

{T}: Sparksmith deals X damage to target creature and X damage to you, where X is the number of Goblins in play.

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.

Krenko, Mob Boss

{T}: Put X 1/1 red Goblin creature tokens onto the battlefield, where X is the number of Goblins you control.

Goblin Settler

When Goblin Settler comes into play, destroy target land.

Siege-Gang Commander

When Siege-Gang Commander comes into play, put three 1/1 red Goblin creature tokens into play. {1}{R}, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to target creature or player.

Blood Moon

All non-basic lands are now basic mountains.

Pendelhaven

{T}: Add {G} to your mana pool. {T}: Target 1/1 creature gets +1/+2 until end of turn.

Goblin Matron

When Goblin Matron comes into play, you may search your library for a Goblin card. If you do, reveal that card, put it into your hand, and shuffle your library afterward.

Goblin Lackey

Whenever Goblin Lackey successfully deals damage to a player, you may choose a Goblin card in your hand and put that Goblin into play.

Tuktuk Scrapper

Whenever Tuktuk Scrapper or another Ally enters the battlefield under your control, you may destroy target artifact. If that artifact is put into a graveyard this way, Tuktuk Scrapper deals damage to that artifact's controller equal to the number of Allies you control.

Mindbreak Trap

If an opponent cast three or more spells this turn, you may pay {0} rather than pay Mindbreak Trap's mana cost. Exile any number of target spells.

Warren Instigator

Double strike Whenever Warren Instigator deals damage to an opponent, you may put a Goblin creature card from your hand onto the battlefield.

Wasteland

Goblin Ringleader

Haste (This creature can attack and {T} as soon as it comes under your control.) When Goblin Ringleader enters the battlefield, reveal the top four cards of your library. Put all Goblin cards revealed this way into your hand and the rest on the bottom of your library in any order.

Mountain

({T}: Add {R}.)