Ivaldi's Rustproof Coating

2nd-level abjuration

Casting Time: 1 action
Range: Touch
Components: V, S, M (A drop of oil on a small rag or a 1 inch cube of lard, which the spell consumes)
Duration: 8 hours
You wave a hand over a willing creature, emitting a green mist that clings to all of the metallic armor, weapons, and other objects and equipment they are carrying or wearing, coating them in a faint green sheen. For the duration, all of the affected objects are immune to attacks and effects that corrode metal, such as a rust monster’s antennae attack. This spell does not enhance the physical durability of the objects.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you may target one additional creature for each slot level above 2nd.
Class(es): Artificer, Merchant