The best way to do it is having 2 players for SA
Your friend should have many clones and healing and put him in the center spot.
Your own team must do accupuncture and high damage/combo.
Put your own team at the bottom abd you're all set!

This is the easiest way to clear it, if you'e still unable to do it reply, I'll try my best to respond.

If you need a lineup or help with anything send me a reply and i'll help.
Sincerely, Blaze
(Not blaziken or i will be copyright striked!)