This sounds great, I think I'm in...

Can I have a human Starweaver who was once saved and raised by a Daeva? She was once kidnapped and somehow being experimented for an enhancement using magitech core implantation against her will. A Daeva somehow broke into the lab and released her. The nature of her magic is still human, but she has a noticeable Daeva mannerism and clothing preference. She channels her magic with dancing movements. What do you think?

Sure. Once you have some details of the ability planned out, feel free to run it by me for tweaks.

<Snipped quote by VeyrinDay>

Sure. Once you have some details of the ability planned out, feel free to run it by me for tweaks.

Neat, I think it would be:

Stats:
Strength: 2
Support: 4
Dexterity: 5
Defense: 1
Stamina: 4

Magic:
1. Four-Elements Manipulation
My character can manipulate the four elements: fire, wind, water, and earth; but she must choose one at a time. Switching element is stamina consuming that she'd rarely do it without taking some moments to rest. She can use the elements both as offensive and (mostly) support magic. She can even influence particular emotions to come out using the magic of the same nature.

2. Fountain of Youth
The more she cast her magic, the more she rejuvenates her physical health and retains her young look.

Is it acceptable or quite overpowered?

Stats are general guidelines and closer to flavor text, so don’t fuss too much about that aspect. How an ability is used by players normally goes well beyond what’s quantifiable in numbers. If human, they can magically use a variety of elemental spells by default, so I’d recommend a different Starweaver power. If you’re not sure how to go about it, you can join the Discord (discord.gg/25QwmRmG) and brainstorm with other players. Everyone’s still in the CS phase or tweaking powers phase.

Generally, Starweaver powers are quite specific, so perhaps the fountain of youth aspect can feasibly be the Starweaver gift. That said, it’s pretty useless in combat unless the effect is more like a rapid self-heal on cast.