I used only 4 fights today. Only 1 in the last hour before my payout when I was in 2nd and didn't even need to.
I'm at the point with arena where it's so frustrating I'm about to ignore pay outs and just attack the villains on my hit list any time I see them on my screen. Let's face it there is zero skill or thought regarding winning and the payout structure, whether we place 1st or 10th. It's mash buttons and hope your the lucky one that gets a fight inside a 2 second refresh window while someone isn't getting attacked.
I think I'll find more enjoyment annoying others first, then if randomly get lucky and place good as well then that's just a bonus.
Leeeeeroyyyyyyy Jenkinsssss style