Cheapest priced copy (Fallen Empires): $0.69 at Card Kingdom, near mint, their price list as of .
Goblin Grenade 
Sorcery · Uncommon · The List · #M12-140
As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
8 printings · $0.69 to $10.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Anthologies | 32 | Common | $0.79 | — |
| Duel Decks: Merfolk vs. Goblins | 45 | Uncommon | $0.99 | — |
| Fallen Empires | 56a | Common | $0.79 | — |
| Fallen Empires | 56b | Common | $0.69 | — |
| Fallen Empires | 56c | Common | $0.79 | — |
| Jumpstart 2022 | 542 | Uncommon | $0.69 | — |
| Magic 2012 | 140 | Uncommon | $0.79 | $10.99 |
| The List | M12-140 | Uncommon | $2.29Out of stock | — |
3 rulings from Wizards of the Coast
- 4 October 2004You can't sacrifice more than one Goblin to get a greater effect.
- 22 September 2011The Goblin you sacrifice to cast Goblin Grenade doesn't have to be a creature. For example, you could sacrifice Boggart Shenanigans (a kindred enchantment with the subtype Goblin).
- 22 September 2011Players can only respond once Goblin Grenade has been cast and all its costs have been paid. No one can try and destroy the Goblin to prevent you from casting Goblin Grenade.