Fblthp, the Lost is a special Legendary Creature — Homunculus card from Time Spiral Remastered (TSR), collector number 308. Current market price: $0.48 (foil $6.90), TCGplayer market prices via Scryfall.
When Fblthp enters, draw a card. If it entered from your library or was cast from your library, draw two cards instead. When Fblthp becomes the target of a spell, shuffle Fblthp into its owner's library.