So, this will be really unformatted for rn, it's just to throw ideas for now.
Turns: Each lane has it's own round turn... thing. Each lane turn is 3 turns for the people inside it, and they roll ini to decide who gets when. E.G. Garros the Unsmashable rolls 2, and Vlendel the Magical rolls 5. Vlendel does his turn, then Garros, this happens two more times, then it's another lane's turn. Anybody who isn't in a lane gets 1 turn each round, giving them 3 turns per lane rotation, just like everyone else.