He has general control over energy, and can take the kinetic energy of objects and use it.
Special attacks:
Energy flash: blinds enemies on the battlefield with a bright flash
Energy bomb: creates a small burst of energy to stun opponents
Energy vacuum: a large pulse that absorbs any kinetic energy
Energy shield: creates a small, fragile force-field that blocks physical attacks, and absorbs energy.
Energy weaponry: depending on his form he will have one of three weapons: staff, scythe, or spear all of which are made of pure energy.

Aitris' modes are what determine his fighting style. There are three modes: Physical, Metaphysical, and Neutral
Physical: He wields a staff in this forme, and focuses more on dealing physical damage in this mode.
Metaphysical: He wields a scythe in this forme, and attacks mainly using energy, not physical damage.
Neutral: In this forme he uses a spear, and is a tactful well-balanced fighter

Aitris tends to take things very Very seriously, and doesn't really understand why people act the way they do nowadays.

Name: I can't really judge this as I can't read it when it's yellow.
Abilities: Yeesh, I do like energy control characters, or atleast the idea of them. Very flashy, can create for some more clever moments of the character. However, energy control could even control gravity and create dark matter. You haven't given weaknesses, so I'm not going have a conniption fit and overuse the word OP like a fucking clickbait moron. However, do take care to define his limits, the last thing we need is a person who can create nukes and pretends like it's no big deal.
Modes: I give no damns about this section
Personality: "Nowadays," please come to America sometime and teach them this fantasy world where things can be taken jokingly. I honestly think we're less tolerable of jokes then Muslims are, especially when it comes to bathrooms. Where the sensitivity of gay orgies is so real, that 6 year old children are having gender identity issues.
But, I digress. Your personality section needs to be more fleshed out. Like, give as much info as you'd like to see on other characters at the very least. The most frustrating thing on the planet is trying to battle a character you have to give a personality to.
Appearance: Get your character done.