Zada, Hedron Grinder is a uncommon Legendary Creature — Goblin Ally card from The List (PLST), collector number A25-156. Current market price: $0.13, TCGplayer market prices via Scryfall.
Whenever you cast an instant or sorcery spell that targets only Zada, copy that spell for each other creature you control that the spell could target. Each copy targets a different one of those creatures.