Ib Halfheart, Goblin Tactician

Legendary Creature - Goblin Advisor 3/2, 3R (4)
Whenever another Goblin you control becomes blocked, sacrifice it. If you do, it deals 4 damage to each creature blocking it.
Sacrifice two Mountains: Put two 1/1 red Goblin creature tokens onto the battlefield.¹
Everybody but me—CHARGE!
Illus. Wayne Reynolds

Gatherer Card Rulings [Nov 2009]

• 9/25/2006: If you don't actually sacrifice the Goblin (because it was removed from the battlefield before the ability resolved, for example), no damage is dealt.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (2/10)	Duel Decks: Elves vs. Goblins (Special) Time Spiral (Rare)