Indebted Spirit is a uncommon Enchantment Creature — Spirit card from Modern Horizons 3 (MH3), collector number 31. Current market price: $0.25 (foil $0.34), TCGplayer market prices via Scryfall.
Bestow {2}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.) Afterlife 1 (When this permanent is put into a graveyard from the battlefield, create a 1/1 white and black Spirit creature token with flying.) Enchanted creature gets +1/+1 and has afterlife 1.