Pinchy McStingbutt is a rare Creature — Scorpion card from Mystery Booster 2 (MB2), collector number 552. Current market price: $0.24, TCGplayer market prices via Scryfall.
Deathtouch Whenever Pinchy McStingbutt deals combat damage to a player, conjure a card named Death of a Thousand Stings, Lethal Sting, or Stinging Shot at random into your hand and reveal it. (Treat conjured cards like cards.)