Very well. I will give you your death. You seem to want it so.Seymour
Seymour transforms into Seymour Natus with a mechanical, hovering creature called Mortibody to assist him.
The Mortibody starts a round by casting a basic elemental spell on the party. Seymour will follow with a Doublecast of that spell's -ra version.
When Seymour's HP drops past 24,000, he will Protect himself and start using Break on one character. Mortibody will attack with Shattering Claw, and if the Break status is active and it targets that character, they will shatter and the active party will be down to two members. Below 12,000 HP, Seymour will cast Flare, inflicting as much as 2,500 damage to one character, albeit delaying his next turn. At this stage, Mortibody will start casting Cura on Seymour.
If an aeon is present on Seymour's turn, instead of his usual attacks he will use Banish, which ejects the aeon; unlike instant death, aeons are not immune to eject. Banish is never used against party members (though if hacked to do so, it functions just like any other ejection attack).
If Mortibody is KO'd, it will regenerate by absorbing HP from Seymour—first 4,000, then 3,000, 2,000, and finally 1,000 HP each time after that. If the Mortibody is defeated, it will use Mortibsorption, draining HP from Seymour Natus to regenerate to its next amount of HP (first, 4,000, then 3,000, to 2,000, and finally down to absorbing 1,000 HP each time). Mortibody will keep doing this, even if it kills Seymour.
Seymour is susceptible to Poison, allowing extra damage to rack up quickly. Seymour must be attacked directly to cause his attack pattern to change. Poison damage bringing him under the required value will not alter his pattern until the next time he is attacked, though Mortibsorption will.
NulElement is ineffective without Haste, which can let the NulElements take effect after Mortibody attacks. They may also trigger Desperado, forcing the party to reapply status enhancements.
Provoking Seymour and casting Reflect on the Provoker makes the fight much easier, as this bounces back all of his attacks. Equipping SOS Reflect armor works even better, although it is very hard to obtain such an armor piece by this point. Putting Reflect on Seymour can stop Protect and Cura from landing on him. Otherwise, Protect can be dispelled.
If using single-target attacks, it's better to focus on Seymour. Summoning an aeon that has a full Overdrive can inflict massive damage, especially thanks to Mortibsorption. However, long-term use of an aeon is not possible in this battle due to Banish. The player can fill up the aeons' Overdrives before the battle and then summon them one by one.
The Mech enemies before the fight provide a respectable amount of AP, making it a decent grinding spot.
Once a great summoner and leader of the Guado people, he followed his father as a Maester of Yevon. His calm exterior hides a warped mind, broken by watching his dear mother sacrifice herself to be a fayth...Seymour Natus's CollectaCard
Seymour Natus appears as a enemy in Battle Music Sequences.
Seymour Natus appears as a boss-type enemy in Battle Music Sequences.
Seymour Natus first appeared in the Challenge Event Marriage of Convenience - Into the Bevelle Palace as the event's final boss. He later appeared in Ultimate Guardian as a mid-boss. Currently, he is the final boss in the Record of the Highbridge.
Contrary to his source material, the player has to avoid attacking the Mortibody, else risking a punishing counter, and just focus on Seymour himself. This is primarily a defensive battle for the party, so attaching Protect and Shell to White Mage-type characters is recommended; and adding Reflect may help to buffer the boss's onslaught of spells. Defeating this boss in the Classic series of each event unlocked Yuna and later Kimahri as player characters.
Natus is Latin for "born". This effectively makes the name "Seymour Reborn". He is called "Seymour spectral" in the French version, "Neo Seymour" in the Spanish and Italian versions, and "Seymour Varia" (Variant Seymour) in the German version.