Birdsong (Ravens' Retribution)

You conjure a 20 foot sphere of circling spectral ravens that surround you and your nearby allies. It provides half cover for 1 minute, creating disadvantage for enemies on ranged attacks against you and your allies within the area of effect. The spellcaster has advantage on constitution checks to maintain concentration when damage is taken. Enemies making melee attacks against the spellcaster and their allies within the AOE provoke 1d8 psychic damage from the screeching of the spectral ravens.

When cast at higher levels: Add 1d8 psychic damage (per level) to enemies making melee attacks against the spellcaster or their allies within the AOE.