You need to properly train, son. Like I did.
By buying 50 Full Restores, Hyper Potions, and Revives, and 30 Full Heals. Not even Red can defeat THAT awesome strategy.
...I need to see a team before I can believe this. I can understand plowing through Will and Bruno with no healing, but Karen's a vicious bitch, Koga whores out status attacks like no tomorrow, and Lance... Eh, not so much tough as he is an Uber-abusing asshole that likes to pull random elemental bitchslap attacks out of his ass no matter what you send at him.