*Demonic Transformation - You can only have 2 Demonic Transformations active at any given time"

The caster transforms one willing creature into an aberration. The subject’s form twists and mutates into a hideous mockery of itself. The subject’s type changes to aberration, and it gains a +1 bonus to AC. The creature remains humanoid and is able to speak all languages it knows as  well as use any abilities it had before. At the  end of the duration the creature reverts back to its original form and reduces their max hp by 1d8 necrotic damage for each level of the spell until the end of a long rest.

At Higher Levels: When you cast this spell using a spell slot of 2 level or higher the AC bonus increases by one to a maximum of 5