Blast-Bones

You target a skeleton that is within your line of sight and animate it with volatile necromantic energy. The has an AC of 10 and 5 HP.

At the start of your next turn, designate a creature you can see as a target for the skeleton. The skeleton will then charge at the taget and explode. each creature within the 10-foot-radius sphere centered on that target must make a Dexterity saving throw. On a failed save, each creature takes 1d10 necrotic damage, or half as much on a successful one.

Casting at Higher Levels: When you case this spell using a spell slot of 2nd level or higher, the damage necrotic damage dealt increases by 1d10 per spell level.