Deep Magic Volume 1
Alter Arrow's Fortune
1-level Divination
Casting Time: 1 reaction, which you take when an enemy makes a ranged attack that hits
Range/Area: 100ft.
Components: Somatic
Duration: Instant
Attack/Save: CHA Save
Damage/Effect: Protection
You clap your hands, setting off a chain of tiny events that culminate in throwing off an enemy’s aim. When an enemy makes a ranged attack with a weapon or a spell that hits one of your allies, this spell causes the enemy to reroll the attack roll unless the enemy makes a successful Charisma saving throw. The attack is resolved using the lower of the two rolls (effectively giving the enemy disadvantage on the attack).
Available for: Bard, Cleric, Druid, Ranger, Sorcerer, Wizard