Murder of Crows

2nd level conjuration (Cleric, Druid, Warlock, Wizard)   Casting Time: 1 action   Range: 60 feet   Components: V, S, M (a crow’s feather)   Duration: Concentration, up to 1 minute     You send forth a crow’s feather, which blossoms into a murder of crows, which harass your enemies. Choose a creature within range, they must succeed on a Dexterity saving throw or take 2d6 piercing damage and have disadvantage on their attack rolls for the duration of the spell. A creature surrounded by crows takes 1d6 piercing damage at the start of its turn. A creature surrounded by crows can choose to attack them ending the spell if they die. They have an AC equal to your spell save DC and 15 hit points.