Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Goblin Caves

Enchant land
As long as enchanted land is a basic Mountain, Goblin creatures get +0/+2.

Goblin Digging Team

{T}, Sacrifice Goblin Digging Team: Destroy target Wall.

The Rack

As The Rack enters, choose an opponent.
At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

Basalt Monolith

Basalt Monolith doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap Basalt Monolith.

Mountain

Shatterstorm

Destroy all artifacts. They can't be regenerated.

Ironclaw Orcs

Ironclaw Orcs can't block creatures with power 2 or greater.

Orcish Oriflamme

Attacking creatures you control get +1/+0.

Crevasse

Creatures with mountainwalk can be blocked as though they didn't have mountainwalk.

Pyrotechnics

Pyrotechnics deals 4 damage divided as you choose among any number of targets.

Black Vise

As Black Vise enters, choose an opponent.
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

Grapeshot Catapult

{T}: Grapeshot Catapult deals 1 damage to target creature with flying.

Hammerheim

{T}: Add {R}.
{T}: Target creature loses all landwalk abilities until end of turn.

Flashfires

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Goblins of the Flarg

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)
When you control a Dwarf, sacrifice Goblins of the Flarg.