Armored Heart 2014

1st-level conjuration

Casting time: 1 bonus action
Range: Touch
Components: V, S, M
Duration: 1 round
Classes: Bard, Warlock, Wizard

Deep Magic: clockwork The targeted creature gains resistance to bludgeoning, slashing, and piercing damage. This resistance can be overcome with adamantine or magical weapons.

Source: Deep Magic Extended (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details