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.

Hammer of Bogardan

Hammer of Bogardan deals 3 damage to any target.
{2}{R}{R}{R}: Return Hammer of Bogardan from your graveyard to your hand. Activate only during your upkeep.

Lava Axe

Lava Axe deals 5 damage to target player or planeswalker.

Lightning Blast

Lightning Blast deals 4 damage to any target.

Pyrotechnics

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

Raging Goblin

Haste (This creature can attack and {T} as soon as it comes under your control.)

Shock

Sizzle

Volcanic Hammer

Volcanic Hammer deals 3 damage to any target.

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.