1st-level · Divination
Casting Time 1 reaction, which you take when you are struck by a critical hit
Range Self
Components V, S
Duration Instantaneous
Classes Cleric, Druid, Bard, Sorcerer, Warlock, Wizard
You cast this spell when a foe strikes you with a critical hit but before damage dice are rolled. The critical hit against you becomes a normal hit.
Source: Deep Magic 5e · OGL/Open