Paul Farquhar
Legend
All the armed mercenaries the extremely rich person will send after the party when he realises he has been duped I expect.But also, if the Artificer can just poof up magic items out of nowhere, what stops them from proofing up enchanted plate armour and then selling them to unsuspecting vendors who then wake up the next morning to no suit of armour
The potential problem is the mass production and sale of real magic items, not making high value short duration fake ones (which you can also do with certain spells).