Shadow Armor 2014

1st-level abjuration

Casting time: 1 reaction, which you take when you are targeted by an attack but before the roll is made
Range: Self
Components: V, S
Duration: instantaneous

You can siphon energy from the plane of shadow to protect yourself from an immediate threat. As a reaction, you pull shadows around yourself to distort reality. The attack against you is made with disadvantage, and you have resistance to radiant damage until the start of your next turn.

Source: Deep Magic for 5th Edition (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details