Name: Varvatos Vex
Huge, powerful, can change to human form or Akiridion form, always refers to himself in third person
Weapon: Serrator; can be a spear, or transform to be an energy blaster
Varvatos Vex in Akiridion form: https://vignette.wikia.nocookie.net/trollhunters/images/5/52/Vex_Glorious_Smile.png/revision/latest?cb=20190124221903
Varvatos in human form: https://vignette.wikia.nocookie.net/trollhunters/images/0/06/Vex_Human_-_Profile.PNG/revision/latest?cb=20181206025549
Varvatos Vex holding his serrator: https://i.pinimg.com/originals/14/52/ea/1452ea0cfa0ce382dee2760f8b750981.jpg
And one more thing:
[spoiler][b][i][u]VARVATOS VEX GIVES GLORIOUS DEATH TO HIS FOES!!![/u][/i][/b][/spoiler]
If you’re okay with it, can Varvatos Vex have the ability to regenerate himself just once? Being an energy bring it is very difficult to kill Varvatos so perhaps 1 extra life could be his ability.
Other then his natural super-ish strength, he will be happy with just that one ability