"Any other day, and I would assist you on that front." Trey agreed in jest, but shook his head all the same. It took a very particular sort individual to laugh about planet-scale genocide; the sort he had used to make grudges against, but no longer could spare the time to bother. 

With fair warning given, the opponent switched weapons and broke into a sprint. Trey's walk stopped abruptly in turn, pausing with his left foot barely above the ground. LeeRoy was more agile than Trey had hoped, but not fast enough to phase him. Rather, his concerns were in his opponent's confidence to charge at him head on; unless he simply felt like chancing suicide, it seemed he had a lot of faith in that tin container he wore. Every instinctual urge pushed Trey to test that theory, but the fact was that he did not know himself how much the suit could withstand; with LeeRoy's weapons still outside of his vision, a bad guess could leave him at fatal disadvantage, and one which he would rather not risk. Indeed, at this point in time, Trey did not wish to engage LeeRoy so directly.

'[i]Thirty yards...[/i]' Trey took a long breath, and his silver eyes narrowed. Each pace LeeRoy made signalled his vicinity within an inch of error.
'[i]...Twenty-five...[/i]' His body raised higher, his muscles tensed, and his focus held solely on the flow of mana beneath him. 
'[i]...Now.[/i]' 

With a grating roar, the Conea stamped in front with truly gargantuan strength, shaking the very foundations of the arena. A ten foot radius of granite cracked like glass, all but instants before the debris was thrown airborne in a surge of arcane energy. 
At the centre of the commotion, an unrefined mass of sandstone emerged up from beneath Trey and beyond, laced with upward-pointing spikes and serrated edges. It reached ten feet high and wide -- and rippled towards LeeRoy at a threatening speed, hurling large granite shards as it shot up from beneath them. The wave would travel twenty yards from Trey in all, before tapering to a halt; LeeRoy would be caught in a nigh-unavoidable attack had be been too eager to approach, or otherwise be faced with a solid obstruction from his foe.

Trey stood low upon his end of the conjured wall, sensing for LeeRoy's response to his attack. The sharp surface was of little detriment to him, for he had already determined the areas to which he could step safely. His left leg was still holding his weight, but was apparently struggling to do so, for Trey's abilities did not come without repercussion. His muscles would recover quickly however, and hopefully before LeeRoy was able to reach him through the dust clouds and falling rocks.