Kata Kata no Mi (Solid Solid)

Name in Japanese (translation): Kata Kata no Mi (Solid Solid)
Capabilities: Anything the user "touches" solidifies, this includes all forms of matter and energy. The user can control how "solid" the object can become. Solidity determines the weight of the object, the denser the user makes the object, the more it weighs. The effect of the power only lasts while the user is touching the object, so as soon as they let go it returns to it's original state. When the user solidifies energy, the energy has the same effect as it did in it's normal form. Fire and dense light will still burn, electricity will still shock and solid cold air will still freeze. Kinetic energy can be solidified. However if the force is great enough solidifying it will only make it stronger as it's mass would be increased. If the kinetic energy is weak enough the user can push it away avoiding the impact. The user may solidify air, however it is limited to a ten foot radius and they are not allowed to solidify the foe's air supply.
Type: Paramecia

So... solidify someone's air supply? Insta-death. Also, how does solid fire work? Solid electricity? Solid solar energy? Solid kinetic energy? This is going to need some more limitations if it's going to work.

I believe I addressed your concerns in my edit.

Approved.