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.

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.

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.

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.

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.

Skirk Prospector

Sacrifice a Goblin: Add {R} to your mana pool.

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.

Price of Progress

Price of Progress deals damage to each player equal to twice the number of nonbasic lands that player controls.

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.

Faerie Macabre

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

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.

Mogg War Marshal

Echo {1}{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 Mogg War Marshal comes into play or is put into a graveyard from play, put a 1/1 red Goblin creature token into play.

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.

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.

Wasteland

Leyline of the Void

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield. If a card would be put into an opponent's graveyard from anywhere, exile it instead.

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.

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.