Conjure Azer

An azer from the Plane of Fire appears in a space you designate within 30 feet. This azer is friendly towards you, and will perform a single service before disappearing, in exchange for the iron puzzle spell component. The azer can do one of the following things. As a master-smith, the azer can repair up to 10 weapons or sets of armor, or one third (rounded down) as many if the items are magical. If the weapons or armor are magical, and had lost their magical effects due to being broken, those magical effects can be restored by spending a long rest re-attuning to the item. To work, the azer requires an open space at least 20ft by 20ft, into which it summons a planar forge and anvil to work with. The azer completes its work in one hour, unless interrupted, in which case it disappears before finishing. If this occurs, the azer fails to complete one weapon or set of armor per minute of interruption. Alternatively, you may have the azer hone or strengthen up to 10 weapons or sets of armor, which may not be magical. After the azer completes its work, the items are considered +1 magic items for 24 hours, allowing them to bypass damage resistances or immunities. The azer completes its work in one hour, unless interrupted, in which case it may disappear before finishing. If this occurs, the azer fails to complete one weapon or set of armor per five minutes of interruption.

The azer will not participate in combat except to save itself. If it drops to less than half its health, it immediately takes a reaction and teleports back to the Plane of Fire.