Domination of the Illuminated Mind

This counts as a 10th level spell. This spell is unaffected by Counterspell, Dispel Magic, and Antimagic Field. 

Whenever a creature that you can see within range transforms into another form that is not their natural form, you can use your reaction to gain control of that creatures mind. This does not count as a Charm effect. This mind control effect lasts until the creature returns to their natural form.

At the start of the mind controlled creatures turn, you can spend your reaction to fully control how that creature acts, otherwise they try to carryout the last course of action given to them or they simply attempt to defend themselves and they attack anyone who is attacking them. 

At the end of each of the mind controlled creatures turns, they can make CON, WIS, and CHA saves. If they succeed at all three then they transform back into their natural form and this spell ends.