Alright Ayeun! Let's do this!
I shall go for something creative here, since it's a quick 1 vs. 1 challenge.
=> I send out first, attack second.
=> DQ Time at 5 days.
=> Damage Cap at 45%.
For the Arena, let's try something new. At least I think it is.
The abandoned Powerplant
Apart from the usual roads, the Powerplant seems to be a good stop for a quick battle. The fight will be inside of the Powerplant, direct influence on the structure might cause it to give in, disabling the following arenaeffect:
A shut off generator stands in the middle of the room. Player may decide to attack the generator, to power it up. After enough damage is done, (about 10-15%, the generator is an Electric type. Still, it's up to the ref) the power goes back on, lighting the whole arena up while bolts of lightning are fired randomly between rounds. These may target a random Pokémon, or damage the structure. (Yes. This is possible now.)
I'll choose Spinerella, my female Joltik with Compoundeyes. (:
Feel free to change anything that doesn't feel right to you.