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.

Toxic Deluge

As an additional cost to cast Toxic Deluge, pay X life. All creatures get -X/-X until end of turn.

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.

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.

Lightning Crafter

Champion a Goblin or Shaman (When this comes into play, sacrifice it unless you remove another Goblin or Shaman you control from the game. When this leaves play, that card returns to play.) {T}: Lightning Crafter deals 3 damage to target creature or player.

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.

Goblin Piledriver

Protection from blue. Whenever Goblin Piledriver attacks, it gets +2/+0 until end of turn for each other attacking Goblin.

Boartusk Liege

Trample Other red creatures you control get +1/+1. Other green creatures you control get +1/+1.

Faerie Macabre

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

Goblin Warchief

Goblin spells you cast cost {1} less to cast. Goblin creatures you control have haste.

Krenko, Mob Boss

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

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.

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.

Badlands

Counts as both mountains and swamp and is affected by spells that affect either. Tap to add either {R} or {B} to your mana pool.

Goblin King

Goblins in play gain mountainwalk and +1/+1 while this card remains in 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.

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.

Wooded Foothills

Arid Mesa

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}.)