I believe there should be charges on the traps, they last one fight from a good opponent and after the fight the next fight the opponent can come right up like they own the place!!
As expensive as the traps are, I would pay more to have a charge on them, maybe 4! So for instance after each battle it uses a charge and re arms! So then the next battle it's ready, and if someone trips the trap it uses another charge and re arms until all the charges are gone!
So when you get back on and select traps it will say re arm charge, and you can press it till all your charges are armed and ready!
Before anyone says it's ruled out here's the line from the ruled out section!!
*Auto reset/repurchase traps if you win a defense (shield didn’t activate, still attackable)
My idea you have charges so you still have to re arm your traps there's no auto reset or repurchase!
You buy the charges before you leave!!


