Metabot's Manual of Magical Maneuvers

Illusory Feint

1-level Illusion

You conjure fleeting illusions of attacks or movement. Until the spell ends, you have advantage on melee attacks against creatures that are not immune to this spell.
If you hit with a melee attack, the target must make a Intelligence saving throw. If they succeed, they become immune to this spell and otherwise unaffected by its effects for the duration. If they fail, they must use their reaction, wasting it as they lash out at the illusions.
A creature can use its action to inspect your appearance and must succeed on an Intelligence (Investigation) check against your spell save DC, on a success, the creature becomes immune to spell for the duration.
A creature is immune to this spell if it can’t see, if it relies on senses other than sight, such as blind sight, or if it can perceive illusions as false, as with true sight.