[quote=Hagura] While external/environmental effects can affect users, they can simply take a form more adapted to the dangers and thus ignore most dangers or simply reform themselves.

User cannot bestow themselves abilities but limitless Shapeshifting can mimic many such effects. Skilled users can notably access temporary empowering abilities, such as Super Form and Transformation, but not permanent ones, like Evolution, which requires stability.[/quote]
Any power that starts with "omni-" has the potential to make character over-powered/near invulnerable. Like Shard suggested, I would definitely consider giving your character some cons/weaknesses so your character actually appears mortal.