Seymour wasn't that bad for me...
Actually I never had a problem fighting Seymour. I used bio on Seymour then just kept going after the morti thingy. Of course I casted haste and protect on everyone. Of course was completely stocked up on holy waters before the battle but I guess you can say I "cheated" because I bought the walkthrough before I started the game. So Seymour didn't present too much of a problem any of the times I fought him. As long as I leveled up at a reasonable rate, like I was actually fighting battles developing my characters rather than just watching the story unfold. Which can be easy to do when you just follow the walkthrough step by step.
Actually I never had a problem fighting Seymour. I used bio on Seymour then just kept going after the morti thingy. Of course I casted haste and protect on everyone. Of course was completely stocked up on holy waters before the battle but I guess you can say I "cheated" because I bought the walkthrough before I started the game. So Seymour didn't present too much of a problem any of the times I fought him. As long as I leveled up at a reasonable rate, like I was actually fighting battles developing my characters rather than just watching the story unfold. Which can be easy to do when you just follow the walkthrough step by step.