Okay, it's been a while since I had one of these kind of battles, but I'm prepared to help three of my team members evolve, so...
3 on 3 (all out at once)
I choose first
You attack first
DQ: 1 week
Arena: Indigo Stadium's rock field
For this battle (like other ones had before it), Pokemon can only use two moves per round, just to make this more challenging.
One last thing, can we agree not to use direct healing moves (e.g. Rest but not Giga Drain), Attract, Captivate, Toxic, Substitute, and cheap moves (e.g. Explosion, Destiny Bond) please?
My Pokemon of choice will be my nameless male Ralts, Skorpio my shiny male Skorupi, and King Boo my male Gastly.
Edit: One last thing I forgot, can we agree to no type advantages please?