Board Thread:Off Topic/@comment-26397825-20181027021942/@comment-37537411-20190315152730

Everyone that has a soul has aura. Aura is their manifeted life force. Some people use aura for defense, to shield and heal themselves. Others can project it as a physical force, as Ren did to defeat the King Taijitu in the episode "The Emerald Forest."

Semblances are the powers people manifest that reflect their personalities. Semblances are fueled by aura, allowing them to physically manifest.

Perhaps instead of putting a uses per day cap on your semblance, say that it uses a lot of your aura reserves to activate your semblance. You can only activate it when you have enough aura to fuel it.

Don't have your semblance negate other semblances and ignore aura defense. Instead, say that it suppresses the ability to physically manifest or use aura in the area around you while your semblance is active. If a person can't use their aura, they can't fuel their semblance. Likewise, they are unable to manifest aura to block attacks or heal.

P.S. - You are correct about Mercury, his father stole his semblance and never returned it.