Your figure becomes blurred and flickers in the eyes of others. During the duration of the spell, any creature makes an attack roll against you at a disadvantage. Attackers who do not rely on vision (such as blind vision) or can see through illusions (such as real vision) are immune to this effect.

Blur 5e

Level: 2nd

Classes: Wizard, Sorcerer

Casting Time: 1 Action

Range: Self

Components: V

Duration: Concentration, up to 1 minute