Dimir Infiltrator

Creature — Spirit1/3$0.32

This creature can't be blocked. Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Legal in Commander

View Dimir Infiltrator on Scryfall