Element Gems

The element gems are a collection of mysterious rocks of unknown origin. They are incredibly dense and really heavy.

When a person comes into physical contact with the gem, it will diffuse through their skin and into their bloodstream. Said person's strength, speed, reflexes, senses and other attributes will increase slightly, and they will gain an ability related to the element of the gem they come into contact with.

It takes 10 minutes for the energy to settle into the user's bloodstream, and during that time, the user's abilities may become slightly unstable, like when Kellin accidentally set fire to a tree on contact after being infused with his element gem, and Max, by chance, extinguishing the flame by pointing at it.

During first use, The user can't use their abilities for a long period of time, or emit a lot of their element. Just like how Max and Kellin were only really able to cover themselves in electricity/fire. After the dungeon trial, they experienced fatigue which weakened them during their encounter with Roxy.

However, the user can train to increase the output and length of time they can emit their element, as Max and Kellin do.

The way it all works is that after settling into a user's bloodsteam, it converts into a dense, renewable energy, which the user can later emit at will. The user can emit this energy, which will automatically convert into whatever their element it. So if Max were to emit his gem energy, it would transform into electrical energy, or Kellin emitting his energy, turning into fire.