Wisp Ally [two-actions] Spell 1

You summon a Tiny bouncing wisp of light that easily distracts even the most determined of combatants. The wisp floats near your target. A wisp doesn't take up space, grant flanking, or have any other attributes a creature would. The wisp generates bright light in a 10-foot radius. When you Cast the Spell and each time you Sustain the spell, your wisp attempts to distract your target, which must succeed at a Will save or become off-guard until the start of your next turn. A creature who critically succeeds becomes immune to wisp ally for 1 hour.