Cut

As you sweep you hand through the air, an blade of pure darkness flashes towards a target within range.  Make a ranged spell attack on the target.  On a hit, they take 10d10 slashing damage.  If this damage reduces the target's hit points to 0, they are cut in half (if the DM decides the target is too big to be cut in half by this spell, it instead severs a 5ft wide section from it).

The blade can cut through hard materials like metal or stone.

At higher levels: When you cast this spell using a spell slot of 7th or higher, the spells damage increases by 3d10 and its range increases by 60ft for each 2 levels above 5th.