This is a walkthrough for the boss fight Seymour Evolution from the game Final Fantasy X (FF 10, FF X). Read on for tips and strategy about how to beat Seymour Evolution , including Seymour Evolution's stats and other useful information.

Seymour: Natus Information

Seymour: Natus Basic Information

Seymour: Natus Stats

Seymour: Natus Elemental Resistances

Seymour: Natus Status Resistances

Seymour: Natus Equipment Ability Drops

Mortibody Information

Mortibody Basic Information

Mortibody Stats

Mortibody Elemental Resistances

Mortibody Status Resistances

Mortibody Equipment Ability Drops

Seymour: Natus Boss Battle Guide

Details

Seymour fights with Mortibody. Mortibody uses moves which Seymour Combos with dealing massive / lethal damages. Mortibody can be slain but it will ressurect itself by draing health from Seymour. (It Drains 4000 HP to 1000 HP Lowering by 1000 Everytime it Resurrects).

Opening Moves

Tidus and Auron can talk to Seymour to raise their Strength for the battle. Yuna can also talk to Seymour to increase her Magic defense Bring out Lulu and make her cast Bio to deal huge damage to Seymour overtime.

Phase 1 Moveset

Teamwide Tier 1 Black Magics (Mortibody)	Uses a Tier 1 Black Magic against the whole party.
Desperado (Mortibody)	Damages and dispels the party.
Multi-Cast Tier 2 Black magic	Casts a lvl 2 black magic on 2 different targets.

Phase 1 Strategy

Desperado, a teamwide attack that also dispels the entire party.

Bring out Rikku and Tidus. Make Tidus cast Haste on Rikku so she can keep using Al Bhed Potion negating the damage Mortibody does. Mortibody can remove buffs so you might need to reapply haste. Also, do not kill Mortibody. We will need its resurrection damage for Phase 2.

Phase 2 Moveset

Shattering Claw (Mortibody)	Deals physical damage to a single target. Shatters the target if its petrified.
Break (Seymour)	Inflicts petrification to its target.

Phase 2 Strategy

Seymour will initiate Phase 2 when his HP drops to 24000. You will want to quickly deal damage to Seymour to skip this phase since a potential shatter can leave your team with only 2 characters for the remainder of the fight.

Summon your Aeons that have Overdrives and use it on Seymour. With the Aeon's Overdrive damage plus the 4000 damage drain from Mortibody, we can quickly bring Seymour to Phase 3.

Phase 3 Moveset

Cura (Mortibody)	Heals its target for medium amount of health Mortibody will keep on healing Seymour during phase 3.
Flare	Deals massive non-elemental damage to its target.

Phase 3 Strategy

Bring out Yuna and cast reflect on Seymour so Mortibody can't heal Seymour with Cura. Keep 2 attackers on the field actively damaging Seymour and 1 character dedicated to healing or reviving team members.

Final Fantasy X - Related Articles

Main Story Bosses
Sinspawn: Ammes	Geosgaeno
Klikk	Tros
Kimahri	Sin(Fin)
Sinspawn:Echuilles	LordOchu
Sinspawn:Geneaux	Oblitzerator
Chocobo Eater	Sinspawn: Gui
Extractor	Spherimorph
Crawler	Seymour
Anima	Wendigo
Evrae Altana	Evrae
Seymour: Natus	Defender X
Biran Ronso	Yenke Ronso
Seymour Flux	Sanctuary Keeper
Spectral Keeper	Yunalesca
Sin Core	Sin
Seymour Omnis	Braska's Final Aeon
Yu Yevon

Arena Area Conquest Monsters
Stratoavis	Malboro Menace
Kottos	Coeurlregina
Jormungand	Cactuar King
Espada	Abyss Worm
Chimerageist	Don Tonberry
Catoblepas	Abaddon
Vorban

Omega Dungeon
Ultima Weapon	Omega Weapon

Arena Species Conquest Monsters
Fenrir	Ornitholestes
Pteryx	Hornet
Vidatu	One-Eye
Jumbo Flan	Nega Elemental
Tanket	Fafnir
Sleep Sprout	Bomb King
Juggernaut	Ironclad

Arena Original Monsters
Earth Eater	Greater Sphere
Catastrophe	Th'uban
Neslug	Ultima Buster
Shinryu	Nemesis

Dark Aeons and Penance
Dark Valefor	Dark Ifrit
Dark Ixion	Dark Shiva
Dark Bahamut	Dark Yojimbo
Dark Anima	Dark Cindy
Dark Sandy	Dark Mindy
Penance