The caster knocks their target into the air, and summons a series of Storm, Earth, and Fire images that strike the victim in rapid succession. If the victim fails to face each image's attack they will take 60 Physical damage.
In Normal Difficulty, three strikes occur.
In Heroic Difficulty, four strikes occur. Once Mestrah, the Illuminated assumes her dragon form, nearly all players face their own Multi-sided Strike challenge
In Mythic Difficulty, five strikes occur, and nearly all players face their own Multi-Sided Strike challenge.
In Looking for Raid Difficulty, three strikes occur.