Dismantle

You conjure a razor-thin blade of cursed arcane energy and hurl it toward your foes. The blade slices through magic and matter alike, leaving behind shimmering motes of broken reality. Primary Strike. Make a ranged spell attack against a creature or object within range. On a hit, the target takes 5d10 force damage. Until the spell ends, you can use your action on each of your turns to repeat this attack. Arcane Cleave. Whenever you hit a creature with this spell, a ripple of arcane energy bursts outward. Each other creature of your choice within 5 feet of the original target must make a Dexterity saving throw. On a failed save, a creature takes 2d8 force damage, or half as much damage on a successful save. Precision Cut. If you score a critical hit with this spell, the primary target takes an extra 1d10 force damage, and its speed is reduced by 10 feet until the start of your next turn. At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the primary strike damage increases by 1d10, and the burst damage increases by 1d6 for each slot level above 6th.