Enthrall Dead

You reach into the spirit realm and bend a creatures sport to your whim using powerful magics.

Cast the spell on a corpse of a creature that must be within range for the entire duration of the spell. At the end of the duration make a ability check using your spellcasting ability of a DC equal to the challenge rating of the creature you wish to raise if you succeed the creature is raised from the dead at half it's hit point maximum and is under your control for the duration on a fail the creature is raised but is not under your control and is hostile towards you. The DC of this check is reduced by 5 if the corpse of the creature is less that 3 days old. 

Once enthralled the creature has the same statistics as it had in life except it gains the Undead fortitude ability with the DC being the creatures CR + damage taken.

As a bonus action on each of your turns you can mentally command the creature if it is within 100 miles of you. You decide what actions the creature will take and where it will move during it's 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 it's task is complete. 

The creature is under your control for 24 hours, after which it stops obeying any command you have given it. To maintain control of the creature for another 24 hours, you must cast the spell on the creature before the current 24 hour period ends.

If you fail to cast this spell on the creature again or the creature is reduced to 0 hit points the creatures body is reduced to Ash and cannot be resurrected in this way again.