Quote Originally Posted by Jiro View Post
Seymour on Mount Gagazet was the toughest boss for me, followed by Evrae. That being said, I actually haven't beat Seymour inside Sin yet, due to laziness/ I think my file was deleted.

Seymour on Gagazet was a bitch, so I spent a month or so just leveling around a save point until I got Bio for Lulu which helped quite considerably.
Combine Bio and Haste on him (he only moves once for each turn Morti gets, yet Poison still takes effect on those do-nothing turns) and watch the party.

For me, it was Sinspawn Gui, Evrae and Sanctuary Keeper the first time. Sinspawn Gui still gives me hell... >_>