Undead Assemblage

You create a moving mechanism or object by temporarily animating various corpse parts. The magic brings them together using bones as a frame and muscle and sinew for moving parts. You must target one medium-sized corpse and can create a machine no larger than a 5-ft cube. Common contraptions might include a small crane, a plow, a moving chair, a moving chest, a small ballista, or parts for a larger machine. When the spell ends, the machine falls limp and can no longer move of its own accord. The machine has a Strength score of 13 and 22 hit points while it persists.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, you can increase the maximum size of the machine or object by 5 ft. per spell slot above 1st. When you do, you must target larger or additional corpses. Each 5-foot cube that you create requires one medium-sized corpse. Larger corpses count for a number of 5-foot cubes equal to the spaces they occupy. For instance, a Large corpse counts for four 5-foot cubes of matter.

source: noblecrumpet-dorkvision.tumblr.com/post/179396241811/necromancer-week-new-spells