Ætherstorm (5e Spell)
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A sphere of astral energy rips through at a space centered on a point within range. All creatures within a 25 foot-radius sphere must make a Constitution saving throw. On a failure, creatures are pulled 15 ft towards the center and take 6d8 force damage. If a creature is at the center, or the center is occupied by a creature so that another cannot occupy the space, all such creatures take an additional 2d6 bludgeoning damage, and are knocked prone on a failure. On a success, creatures take half damage. For each level this spell is cast beyond the 4th, this spell deals an additional 1d8 force damage.
At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, this spell deals an additional 1d8 force damage.