Prosperous Innkeeper is a uncommon Creature — Halfling Citizen card from Tales of Middle-earth Commander (LTC), collector number 256. Current market price: $0.36, TCGplayer market prices via Scryfall.
When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Whenever another creature you control enters, you gain 1 life.