Arena flame shouldn't be on a timer but turn based

I have been against some opponent that stall fight on purpose push you on the edge and take action near the 10 second mark every turn so you loose by hp reduced penalty.

It a valid strategy to corner someone and keep your ground but you shouldn’t be able to take advantage by using the clock on your side. If it could be 10 turn then flame on extremity 15 next row etc would make more sense no?