Shock

Raging Goblin

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

As an additional cost to cast this spell, discard a card.
Draw two cards.

Lightning Strike deals 3 damage to any target.

Make Mischief deals 1 damage to any target. Create a 1/1 red Devil creature token. It has "When this creature dies, it deals 1 damage to any target."

Create two 1/1 red Goblin creature tokens.

Magma Spray deals 2 damage to target creature. If that creature would die this turn, exile it instead.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

{T}: Goblin Fireslinger deals 1 damage to target player or planeswalker.

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