Underworld Hermit is a uncommon Creature — Human Peasant card from Modern Horizons 2 (MH2), collector number 105. Current market price: $0.29 (foil $0.33), TCGplayer market prices via Scryfall.
When this creature enters, create a number of 1/1 green Squirrel creature tokens equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)