The Grand Goatnapper is a rare Legendary Creature — Goblin Rogue card from Alchemy: Lorwyn Eclipsed (YECL), collector number 20.
Spells you cast have affinity for Goats. {T}: Another target non-Goat creature perpetually becomes a Goat in addition to its other types. Then conjure a card named Goatnap into your hand. Activate only as a sorcery.