heres what i did.

cloud- KOTR(level 2) with hp absord, w-summon, hadesmp absorb, final attack phoenix, mime.

tifa- doesnt really matter

cid-mime

1st i killed of tifa and cid, 2nd i w-summoned KOTR and hades, 3rd i mimed, 4th ruby kills my cloud and i final attack phoenix, 5th w-summoned KOTR and hades and mimed with cloud and cid.
easy as that.

note- i killed him at about 11:00 last night