Lotho, Corrupt Shirriff is a mythic Legendary Creature — Halfling Rogue card from The Hobbit Commander (HOC), collector number 34. Current market price: $12.51 (foil $13.81), TCGplayer market prices via Scryfall.
Whenever a player casts their second spell each turn, you lose 1 life and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")