Squeaking Pie Sneak is a uncommon Creature — Goblin Rogue card from Lorwyn (LRW), collector number 142. Current market price: $0.16 (foil $0.50), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, reveal a Goblin card from your hand or pay {3}. Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)