ULC necromancer hyena

ULC guards were reported for duty to prevent the destruction that a necromancer hyena was about to cause on the British royal family. He was sighted as a humanoid hyena that's orange and yellow and that was wearing a dark robe. He yelled swears at the royal family and seemed to hate them because of their leadership and royalty.
He began to throw fireballs at every guard that would stand in his way, but the ULC guards arrived just in time with unnamed helicopters. They surrounded him in front of the gates and began to shoot him with pistols. The hyena was able to split some guards in two and transform them into statues, but the guards ended up capturing him by shooting sleeping darts at the humanoid creature.
The thing was tied to a chair in a helicopter and transferred to base ___ in ______. As we tried to interview him he refused to talk.
And he was directed into a natural containment area filed with flowers, grass, trees and a river.
He crushed a few flowers here and there and cut down some trees with his dark magic and demanded food.
We gave it to him by dropping meat from the ceiling for safety. Three months later he accepted to go for an interview, but the interviewer had to also be a humanoid animal that had nothing to do with royalty.
And so we asked Scott Clerkson and he agreed if he had two security guards, so two of them were ordered to protect Scott. They followed the hyena and Scott to the interviewing room which was locked as they entered.
They both sat on chairs in front and behind a metal table.
Scott: Okay, so what's your name?
Hyena: You can call me Zachary.
Scott: Okay. Why do you hate kings and queens?
Zachary: Because they decide everything about their state! The civilians should get a chance to decide as well!
Scott: I see... Where did you obtain this dark magic of yours?
Zachary: I had to do a lot of research on necromancy and learn spells to suck in energy from demons and monsters. It was hard to control at first but I managed to contain it all.
Scott: Interesting, but also frightening. Alright, next question: where were you born?
Zachary: I was born in Jamaa. It's from a different dimension and I accidently teleported to this dimension.
Scott: Well, thanks for participating to this interview without killing anyone.
Zachary: Yeah, whatever. I'm going to be contained for a long time, aren't I?
Guards: You are correct. Now get back in!
The guards pushed him back into his containment area. We also noticed that Zachary does not wear clothing in his containment area. We once made the room hotter and he added a spell so that it rains or snows.
As the room becomes colder he adds in a spell that makes the air hotter. The same applies for the other temperature changes, but the ones that were observing him from a separate room also noticed the temperature changes, ending in them getting frozen or burned. This room has been closed after these incidents and nobody can observe him.
He casts the spells with body language.
He has tried to escape multiple times by teleporting out of them, breaking through the wall and opening the containment door with a force push. Of course we always got to him and placed him back into his prison.
A very rare occurrence was when he changed the way he looked by transforming into a shadowy and red version of himself with a large smile and sharp teeth and claws. Any weapon passes right through him in this form. He traps people and plays with them by killing them with the traps.
He has full control to transform into this demonic form so nobody attempts to anger him anymore.
One of our most advanced and secretive groups hired Zachary with permission. He was hereby released from his containment area by Vlad. Now he is working in the shadows to decide to future of Earth and the ulc government.