Animate into unlife

This spell infuses a once alive creature or was once a creature into an undead servant.
Choose something that clearly came from or was once a living creature of size tiny  that you can easily place your hand upon it.
Your spell imbues the target with the energy to mimic a form of once life, raising it as an undead creature.
The target becomes an undead version of its previous self either in skeleton or zombie form depending on its state of composition (GM's discretion).
This undead has it's own initiative roll starting on the next round after the spell is cast, on the turn it is summoned it will only take the dodge action.

When you complete the spell you may issue it with one of three commands that it will attempt to fulfil to the best of its abilities for the duration of it's undeath.
Defend: The undead will attempt to stay within 10ft of the caster and will attack any opponent that threatens the caster or the undead.
Protect: point to one target and speak it's name, the undead will attempt to stay within 10ft of the chosen and will attack any opponent that threatens the chosen or the undead.
Service: The undead is issued a command to perform one action (made up of no more that five words) and it will perform this action repeatedly until the duration of its undeath ends (GM desecration on how the undead will interpret a service command) 
The animated undead is bound to the caster and will obey the command they give them.

The undead you animate will form in the space the corps occupies and will take on its form depending on if the corps is mainly bones or meat and will use the below stat block.
Binding: only one Animated undead can be bound to the caster at a time if this spell is cast again the original animated undead is destroyed and collapses to the ground as if it was the original corps. 

Animated undead 

Tiny undead
Armor Class 14 + spell adjusted Dexterity ability modifier (natural armor)

Hit Points 5 + 5 for each spell level above 1st + spell adjusted Constitution ability modifier

Speed 20 ft.; climb 20 ft. (Legs); fly 20 ft. (wings); swim 20 ft. (fins) +5 ft for each spell level above 1st (speed type is based on the motive type of the original creature)

+1 to each ability score for each spell level above 1st

Immunities: Charmed, Dominated, turned

Senses Blindsight 30 ft + 5 ft per +1 adjusted Wisdom ability modifier., passive Perception 10 +1 adjusted Wisdom ability modifier

Languages can not speak, understands the languages you speak

Challenge — Proficiency Bonus equals your bonus

Actions

Multiattack. The beast makes a number of attacks equal to half this spell’s level (rounded down).

Unarmed Strike. Melee Weapon Attack: your spell attack modifier to hit, reach 5 ft., one target. Hit: 1d8 + your spell ability modifier necrotic damage.
If the undead can hold and use a weapon it can use the abilities of that weapon, To-hit: your spell attack modifier to hit, reach (weapon), one target, Hit: Weapon damage + your spell ability modifier.

On a successful unarmed strike the target must make a Constitution saving throw DC 12 + spell adjusted Constitution ability modifier, on a failed save the target gains the poisoned condition.

Reactions

Protection: When a creature the undead can see attacks a target other than itself that is within 5 feet of it, it can use its reaction to interpose itself between the attack, becoming the target.

At Higher Levels.
When you cast this spell using a spell slot of 2nd level, you can animate up to a small size corps, increase the initial hit points for the small undead by 5.
When you cast this spell using a spell slot of 3rd level, you can animate up to a medium size corps, increase the initial hit points for the medium undead by 10.
When you cast this spell using a spell slot of 4th level, you can animate up to a Large size corps, increase the initial hit points for the large undead by 20.
When you cast this spell using a spell slot of 5th level, you can animate up to a Huge size corps, increase the initial hit points for the huge undead by 40.
When you cast this spell using a spell slot of 7th level, the duration of the animated undead increases to 10 minutes.
When you cast this spell using a spell slot of 9th level, the duration of the animated undead increases to 1 hour.