JP AI thread by /u/Zurai001

Multiplayer Enemy AI by /u/tfmurphy

BOSS: Ultima Weapon (X)

Difficulties: 160 (Ultimate ) and 200 (Apocalypse)

Overview:

• Overall, a pretty straightforward fight. You will need both physical and magical mitigations.
• His attacks largely follow a scripted attack pattern, so counting turns can help keep you ahead for preparing for his dangerous attacks.
• Has a 30% chance to counter physical attacks. Can be negated with Draw Fire/Tauntaliate.
• As his HP gets lower, he starts to use more piercing physical and magical attacks.
• Has the ability to use Holy, which is WHT and scales off Mind - so remember to bring Mind Breakdown if you aren't using Wall.
• Weak to Holy. Go ham.

Tips:

• Vaan with his Ark Blast BSB once again is extremely great value in this fight. Anyone with an ATK/MAG debuff SB as well is also great for this fight (e.g. Agrias who can use Cleansing Strike and Saint's Cross, Mog/Cait Sith who can support with Dances and Heroic Harmony/Toy Soldiers respectively, and Auron who has access to Draw Fire and Banishing Blade, which is ATK/DEF however).
• While the last 1/3rd of his HP are mainly piercing attacks, Wall still helps a lot for the first 2/3rd of the fight.
• Magic Blink (Firion BSB, Tyro BSB, Selphie SSB) is great for potentially dodging some of the Ultimate: Ultima spam near the end, and giving your room some breathing space. As are instant cast heals (Vanille, Minwu, Arc).