Optional boss · Post-game
Ultima Weapon Weaknesses and How to Beat It in FF Resonance
How to Beat Ultima Weapon
Before the Fight
- Collect every Vision and max their masteries for the AP and permanent stat bonuses.
- Your tank wants a Ribbon, Arms Akimbo, Guard and Multi-Cover.
- Bring Pharmacology from Leah and a stack of Mist Ethers from the Airship or Colosseum.
Ultima Weapon Strategy
Learn the Four Modes
It always opens in Modus Infernus, then switches at random. Each mode changes its weaknesses and moves, so watch which one is active.
Stagger Before Ultima Beam
Right before a mode change it fires Ultima Beam at the whole party. Breaking it in time cancels the beam.
Double Up on Your Tank
With Arms Akimbo, your tank uses Multi-Cover and Guard in the same turn. Splitting them over two turns usually gets the tank killed.
Arms Akimbo Plus Magic Barrage
Attackers stack Arms Akimbo with Magic Barrage, then cast Ultima for raw damage. If a spell matches the current weakness, barrage that instead for a faster break.
Keep Reraise and MP Flowing
Some attacks slip past Multi-Cover, so keep Reraise on everyone, Magic Barrage can spread it in one turn. Refill MP with Arms Akimbo and Mist Ethers, boosted 50% by Pharmacology.
Ultima Weapon Weaknesses
Modus Infernus
The opening mode, built on heavy physical damage. Keep Multi-Cover and Guard up.
FireResist
Ice-
Lightning-
WaterWeak
WindWeak
EarthResist
Light-
Dark-
Recovery-Modus Keraunos
Leans on status ailments, so the Ribbon on your tank earns its spot here.
Fire-IceWeakLightningResistWater-WindResistEarthWeakLight-Dark-Recovery-Modus Cocytus
Switches to strong magic damage, so keep Reraise on the whole party.
FireWeakIceResistLightning-Water-Wind-Earth-LightWeakDarkResistRecovery-Modus Nemea
Plays with buffs and debuffs, so check your party's stats after each of its turns.
Fire-Ice-LightningWeakWaterResistWind-Earth-LightResistDarkWeakRecovery-Ultima Weapon Boss Info
Drops and Steals
- Drop
- Megalixir, Ultima Reactor
- Rare drop
- None
- Steal
- None
- Rare steal
- None
Ultima Weapon FAQ
What is Ultima Weapon weak to?
It changes during the fight. Modus Infernus: Water and Wind. Modus Keraunos: Earth and Ice. Modus Cocytus: Light and Fire. Modus Nemea: Lightning and Dark.
Where do you fight Ultima Weapon?
Ultima Weapon waits in Ardra Crater, from Chapter 8 once the story is over. The fight is optional, so you can come back later at a higher level.
What level is Ultima Weapon?
Ultima Weapon is level 70 with 3,900,000 HP.
What does Ultima Weapon drop?
Beating Ultima Weapon gives Megalixir and Ultima Reactor.