That would be a cool idea, in fact I've thought about it myself a couple times.
My character would be my self MOC, Stoax
Character slams foot on ground, wall of stone juts from the ground. Opponent cannot attack.
Given he wears the Matatu, Stoax will be able to raise large slabs of the ground with the power of his mind then slam them down on the opponent. The amount of time he can hold it is limited though.
Character uses pick to block incoming hits
Tomarang (combination of tomahawk and boomerang): Offensive
Character hurls Giga Pick in tomahawk like fashion, hitting chosen opponent(s). Weapon then returns in boomerang fashion
Plasma streak: Offensive
Via the Giga Pick, Stoax can build up energy over time. Once enough energy is stored, the axe is swung and several waves of energy are released (kinda like the Egg Emperor in Sonic Heroes)
Boulder to da face: Offensive
Using stone powers, Stoax will collect a mass of rocks to form a massive boulder. Stoax will then toss it in the air, jump, and kick the boulder soccer style.
You're pretty good: Offensive
Stoax will say the famous Revolver Ocelot quote and do the hand gesture. While doing so, 12 shots will be fired from his hands.
Theme: Prelude from Red vs Blue