Animate Skeletons

You animate a pile of bones of small or medium creatures within range. Your spell imbudes the remains with a foul mimicry of life, raising it as a undedad skeleton  (the DM has the skeleton's game statistics).

On each of your turns, you can use a bonus action to mentally command any creature you made with this spell if the creature is within 60 feet of you (if you control multiple creatures, you can command any or all of them at the same time, issuing the same command to each one). You decide what action the creature will take and where it will move during its next turn, or you can issue a general command, such as to guard a particular chamber or corridor. If you issue no commands, the creature only defends itself against hostile creatures. Once given an order, the creature continues to follow it until its task is complete. The creature is under your control for 1 hour, after which it reverts back to a pile of bones. 

The summoned skeletons are destroyed if you lose concentration, dismiss them (you can use a bonus action to dismiss a single skeleton or up to all of them) or if they are reduced to 0 HP.

At higher levels: When you cast this spell using a spell slot of 2nd level or higher, you animate an additional skeleton for every level above 1st. Each of the skeletons must come from a different pile of bones.