2nd-level · Divination
Casting Time 1 reaction, which you take when an ally declares an attack against an enemy you can see
Range 30 feet
Components V, S
Duration Instantaneous
Classes Bard, Cleric, Druid, Ranger, Sorcerer, Warlock, Wizard
With a flash of foresight, you throw a foe off balance. Choose one creature you can see that your ally has just declared as the target of an attack. Unless that creature makes a successful Charisma saving throw, attacks against it are made with advantage until the end of this turn.
Source: Deep Magic 5e · OGL/Open