Your search for "Thermo-Alchemist 147" revealed the following:
Thermo-Alchemist (EMN) from Eldritch Moon, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Raymond Swanland Card Text:DefenderT: Thermo-Alchemist deals 1 damage to each opponent.Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.
Thermo-Alchemist (Foil) (EMN) from Eldritch Moon, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Raymond Swanland Card Text:DefenderT: Thermo-Alchemist deals 1 damage to each opponent.Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.
Thermo-Alchemist - EMN Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Raymond Swanland Card Text:DefenderT: Thermo-Alchemist deals 1 damage to each opponent.Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.