Blix (T2 sorc) is an imp… and therefore naked and not carrying any weapons at all. He somehow ended up helping dwarves… partially against his will, but a contract is a contract.
They rewarded him with forged goods. He still has the vouchers for but did never pick them up.
One of those vouchers would be for a +2 weapon of your choice. Which he would love to trade for the brazier! Because… FIRE!!! The deal would certainly need to be signed in blood, but no worries he is a nine hells certified notary!
How would Blix feel about a skeleton key that could unlock things and can become a magical longsword with magical proficiency (aka a Warrior’s Passkey), given by a fairy trickster?
The dwarven weapon is yours! Blix will set up a contract, and I assure you that there is no need to read the fine print. He is a lawful entity for sure.