Brilliant blade
From Magisphere
🗲 Brilliant Blade
3rd-level evocation
Casting Time: 1 bonus action
Range: Self (20 foot radius)
Components: V, S, M (a melee weapon worth at least 1 sp)
Duration: Duration
You brandish the weapon used in this spell's casting, holding it aloft as it flashes with brilliant light. All creatures within 20 feet of you must make a Constitution saving throw. On failure, they are blinded until the end of your next turn. On success, they are blinded until the end of your current turn.