Veil of Dusk

Level 1 Abjuration
Casting Time: 1 bonus action
Range: 60 feet
Components: V, S, M (a pinch of soot)
Duration: Concentration, up to 10 minutes

You incant towards a creature, cloaking them in a shadowy veil of darkness and silence. The target gains a +1 bonus to their armor class and makes Stealth checks with advantage for the duration of the spell.