A well-geared and well-played Summoner can solo almost all of the maps. It's easy to get to ilv85-90 these days, most especially for alt classes. The Chimera....don't know about that one. I *can* tell you my brother and I duoed the Chimera as me as a Lv90 SCH and him as a Lv93 PLD. It was close, but we did it.