All fights are now to be held inside a steel cage.

DIS SUMMER. HELL. IN. A . CELL.

Joking aside, the environment should play a big factor in how clever an opponent is. That is, it takes some skill to utilize all of the environment; whether that means kicking up dust, fighting so that your opponent has to go uphill to reach you, or making it so that the sun is in his eyes and not yours.