Fireblast

You may sacrifice two Mountains rather than pay this spell's mana cost.
Fireblast deals 4 damage to any target.

Seismic Assault

Discard a land card: Seismic Assault deals 2 damage to any target.

Lightning Blast

Lightning Blast deals 4 damage to any target.

Goblin Recruiter

When Goblin Recruiter enters, search your library for any number of Goblin cards, reveal them, then shuffle and put those cards on top in any order.

Kindle

Kindle deals X damage to any target, where X is 2 plus the number of cards named Kindle in all graveyards.

Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

Mogg Flunkies

Mogg Flunkies can't attack or block alone.

Pyroblast

Choose one —
• Counter target spell if it's blue.
• Destroy target permanent if it's blue.

Mogg Fanatic

Sacrifice Mogg Fanatic: It deals 1 damage to any target.

Guerrilla Tactics

Guerrilla Tactics deals 2 damage to any target.
When a spell or ability an opponent controls causes you to discard Guerrilla Tactics, Guerrilla Tactics deals 4 damage to any target.

Goblin Balloon Brigade

{R}: Goblin Balloon Brigade gains flying until end of turn.

Flare

Flare deals 1 damage to any target.
Draw a card at the beginning of the next turn's upkeep.