Any advice on how to beat him? ^^;

The best method of annihilating your foe is to jab them with a sword through the abdomen and if they're still breathing cast a couple of spells. That of course is the conventional method.

At the start of the battle Seymour will use his spear to attack, this causes Zombie status and Flux will cast full life on the zombie, instantly killing them, use holy water (bought from O'akka's brother) to cure the status, make sure to get your aeon's overdrives full, as they can make the battle musch eaisier, also cast Bio on him, and try attcking flux, when you kill him he will absorb HP froms seymour, when a message foretelling the "Total Ahnihilation" cast shell on everyone before it is used.

Tnx master great advice dude....:)

No problem. ;)

got him down ??

He's never survived a consecutive assault of all my Aeons with full overdrives. lol.

I did the same thing when fighting Natus. When the CTB bar shows Seymour's turn, then Mortiorchitis (sp?), I switched in Yuna and summoned an Aeon with Overdrive. That's the easy strategy. ^_^

Heh. Any boss that gave me trouble in that game faced the onslaught of all my Aeon's Overdrives. That includes you too Seymour Flux! Tch. Ambushing me in the mountains...bastard.

To be personally honest, I found Auto-Med and Auto-Phoenix to be quite useful for this battle. That and a decent attacking team.

That is if people have the time to get 99 Mega-Phoenixes. o_0 I didn't.

What I did was use mix to make hazardous shell then Bio then overdrives of Auron,Tidus,Wakka, and Rikku. Then I used Bahamut and the poison killed him.

basically just equip against status ailment that he uses such as zombie ( a must). As long as you have that then you should be fine.