Played a bit of Golden Sun, and Saturos downed me. My Party is: Isaac: 8 Ivan: 8 Garet: 8 Mia: 10/11. I would have had my healer up longer, if I wasn't that 1. Mercury is weak to Mars, and 2. Garet could take him out with his Psyenergy, but Mars v Mars is not that good of a matchup and Mars Psyenergy is weakened up at the top of Mercury Lighthouse anyways.
EDIT: BEAT HIM! And the only one surviving was Garet, at like 26 HP left hehe.
And it wasn't me, it was my sister, Shinehollow who did it.