Animate Critter

You touch the bones or corpse of a Tiny beast and animate it as an undead servant. The new servant has 1 hit point, 10 AC, and cannot attack. It retains any special speeds its original form had. As a bonus action on your turn, you can command the servant to perform some simple action, such as scurrying or flying to a given point. The spell ends and the corpse or bones return to their former state if the servant is reduced to 0 hit points, if the spell's duration is met, or if you cast this spell again on a different target.