The De-Generator Battle, Ash vs Mikachu, Sub-Ref DL

[Mikachu Yukitatsu]

Hello. I'd like to have a battle in the arena that is The De-Generator from the ASB Arena Dex. It has been made by Greyfox.

The De-Generator
Similar to the Elements of Change arena, you and your pokémon are suspended on a platform high into the air. Unlike Elements, however, your pokémon's types don't change every round. Instead, your pokémon are locked out of their traditional abilities and are linked to the abilities of the arena. Every three rounds, a RNG will issue an different ability for the arena that both pokémon are subject to. This ability can be any of the abilities released so far, even abilities exclusive to legendary and banned pokémon.

Restrictions:
Free for anyone to use.

I ban no moves.
I'm fine with 3 vs 3, 4 vs 4, 5 vs 5, 6 vs 6, you name it.

Any takers? A ref to decide who sends out first?