This spell creates an undead servant. Choose a pile of bones or a corpse of dead being within range. Your spell imbues the target with a foul mimicry of life, raising it as an undead creature. The target becomes an undead version, if you chose bones or an already undead creature, it come back as a skeletal version.
on each turn you can mentally command the undead you or a party member raised. (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 infinitely unless killed, after which it turns back into a corpse, if you want to bring it back, you must cast this spell on the creature's corpse again. This use of the spell reasserts your control up to 3 creatures(every level allows you to increase this number by one, level one starts with only 3)
At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you animate or reassert control over one additional undead creature for each level above 3rd. Each of the creatures must come from a different corpse or pile of bones.
* - (a body, or skeleton, as well a container (may it be a bottle, or a jar) of the target's dna, like hair, blood, saliva, scales, molt, etc)