Chain Lightning

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Mons's Goblin Raiders

Goblin War Drums

Creatures you control have menace. (They can't be blocked except by two or more creatures.)

Shatter

Mox Ruby

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.

Mountain

Goblin Balloon Brigade

{R}: This creature gains flying until end of turn.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Strip Mine

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target land.

Blood Moon

Eternal Flame

Eternal Flame deals X damage to target opponent or planeswalker and half X damage, rounded up, to you, where X is the number of Mountains you control.

Black Lotus

{T}, Sacrifice this artifact: Add three mana of any one color.

Goblin Grenade

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

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 this creature.