Manifest two powerful spherical singularities, one in each of your hands. They are made of thousands of glowing distorted rectangular foci and last for the duration. When casting this spell, you can choose to hold the singularities or expel one in front of you, covering a line that is 5-foot wide and 50-foot long. All creatures in the area must make a Dexterity saving throw, taking 8d10 force damage on a failure or half damage on a success.
On subsequent turns, you can take an action to expel a singularity or both to end this spell in a torrent of arcane disarray. This doubles the width and length of the area of effect and adds an additional 4d12 force damage.
While holding at least one singularity, attacks against you have disadvantage and spell attacks that hit you deal half damage. If you expelled one singularity and still concentrate on this spell, you can use a bonus action in your turn to manifest another.
At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the damage increases by 2d10 and 2d12 when expelling both singularities for each slot level above 7th.
* - (fine glass dust mixed with precious gems worth 5 pp, which the spell consumes)
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