38. Final Fantasy XII The Zodiac Age Optional Bosses

Optional Bosses

While not technically optional if you want 100% completion, these are bosses that you wouldn't face during the main story. 

Earth Tyrant - Dalmasca Westersand - Wyrm's Nest

The Earth Tyrant can be defeated once the party has completed the events on the Shiva. However, it's a good idea to wait until your party is above level 30. 

There's a whole side quest that needs to be completed in order to fight the Earth Tyrant. Start off by going to Rabanastre's West Gate, and look for a Bangaa called Rimzat. Agree to help him and then head to the Southern Plaza. Find a man sitting on the fountain called Cotze. Speak to him. You'll then need to go to Lowtown's Northern Sprawl and find a man called Northon. He's sitting on the floor, next to a red Bangaa, just south of the entrance to Garamsythe Waterway. He'll tell you that you need to find his half of the Windvane that's buried under a Dynast-Cactus in the Westersand. 

Head to the Windtrace Dunes, via the Shimmering Horizons. Search the Dynast-Cactuses on the southern wall to find the Wind Globe. Head back to Rabanastre. You'll find Rimzat, Cotze, and Northon together at the Westgate. Speak to Rizmat, and Northon will give you the Windvane key item. This will allow you to get to the Wyrm's Nest. Now you're able to fight the Earth Tyrant. 

Head to the Corridor of Sand, and just before entering the Wyrm's Nest, prepare your party with any buffs you have (Protect etc.) and prepare yourself for a battle. 

  • Level: 30
  • HP: 73,982
  • Steal: Hi-Potion, Tyrant Hide, Tyrant Bone

Be prepared for the Earth Tyrant's defense to increase by a large amount when it gets to 50% HP. If attempting this fight earlier in the game, this could make things difficult. Its normal attacks can inflict Poison, so you'll need to be ready with Esuna/Antidotes

Earth Tyrant has an attack called Screwtail, and this can do a fair amount of damage to all party members if you're not careful. 

Apart from that, this isn't an incredibly hard battle.

Once the fight is completed, you'll be able to travel between the Estersand and Westersand via this area.

King Bomb - Salikawood - Grand Bower

You need to defeat the King Bomb in order to access the Nabreus Deadlands and Necrohol of Nabudis. Start off in the Quietened Trace, and save your game. Then buff your party with any buffs you have (Protect, Shell, Haste) and then when you're ready, head into Grand Bower for the fight. Ensure you have a Gambit set up for Ally status = Oil > Handkerchief. King Bomb uses Fire Magick and can inflict Oil, which can be deadly to your party. 

  • Level: 34
  • HP: 37,596
  • Steal: Bomb Shell (55%), Fire Crystal (10%), Bomb Fragment (3%)

King Bomb is weak to Water Magicks, so using Aqua would be a good idea. At the start of the battle, Dispel King Bomb, and then you want to keep casting Silence on it. Casting Silence on him twice will prevent him from using Renew, which can make this fight a lot harder if he does use it. You want to keep casting Silence as it will prevent him from bringing in reinforcements.

If you're struggling, use Quickenings to help take him down.

Hell Wyrm - Sochen Cave Palace - Hall of the Wroth God

There will be the assumption that you've already opened the Ascetic Door, and that you have access to all of the Magicks and Technicks in the game. 

The Hell Wyrm is kind of a Yiazmat-lite. You want to be at least level 70 to tackle Hell Wyrm, and there are a few things you need to do before you can get to him. Try and get three White Masks (I found one, weirdly, to be enough) to make the fight easier. 

Start off by completing Hunt 21: Get My Stuff Back! (Vyraal - Rank V). You should have a Dragon Scale in your Important Items. Then travel to the Northward area of the Cerobi Steppe and find Windmill #10. Examine this windmill for a cutscene. Give the Dragon Scale to the Wyrm Philosopher, and in return, you'll get the Ageworn Key. 

Then travel to the Sochen Cave Palace, and go through the Ascetic Door. At the end of the path here is the Hall of the Ascetic Door. Before using the Ageworn Key on the door, it's time to prepare your party. 

Buff them with all of the buffs - Protect, Shell, Haste, Bravery, Faith, Bubble, and Regen. This was my setup for the fight:

Knight/Bushi - Equipped with an Ultima Blade, White Mask and Bubble Belt. This was my primary attacker. 

Foebreaker/Shikari - Equipped with a Scorpion Tail and Power Armlet. 

White Mage/Time Battle Mage - for healing and support, equipped with Sage's Ring. 

Gambits: 

KnightFoebreakerWhite Mage
Foe: any > Attack

Foe: any > Wither
Foe: any > Expose
Ally: any > Chronos Tear
Ally: any > Gold Needle
Foe: any > Attack

Ally: [Knight] > Decoy
Ally: HP < 40% > Curaja
Ally status = KO > Arise
Ally: any > Esunaga
Ally: Any > Protectga
Ally: Any > Hastega
Ally: [Knight] > Bravery
Self: MP < 20% > Hi-Ether
Foe: any > Attack

  • Level: 74
  • HP: 1,326,600
  • Steal: Hi-Ether (55%), Jade Collar (10%), Excalibur (3%)

The Hell Wyrm has an incredibly amount of HP and does a lot of damage. It's HP is should by multiple bars, each little bar represents a larger HP bar. So you need to deal a lot of damage. 

The Hell Wyrm hits hard, so be prepared in this fight. It can inflict Stop, so Chronos Tears are incredibly important for when your Mage is affected. 

Its hardest attack, Judgement, can be nullified fairly easily by using White Masks and Sage's Ring. 

Once Hell Wyrm reaches 30% HP, it will start using Stone Breath, which can inflict Petrify. If it's taking too long for your White Mage to cast Esunaga, consider switching the Gambit to use Gold Needles. 

Hell Wyrm can also use Invert, which will switch a character's MP and HP, so be ready to heal if that is used. Another thing your White Mage can do is if it has access to Syphon, is to use it on another party member, to effectively steal MP from them. 

Using Expose will allow you to do more damage to Hell Wyrm, but once it reaches 50% HP, damage dealt will be capped. 

Apart from that, you just need to outlast Hell Wyrm. It should take about 10-30 minutes to complete this fight.

You'll unlock an achievement for defeating Hell Wym, and Montblanc will reward you with 50000 Gil. You also need to defeat Hell Wyrm in order to fight Yiazmat. 

Radiant Savior

Defeated the Hell Wyrm.

Radiant Savior
1 guideOffline Game ModeSingle Player

In this room is a chest that contains the Zodiac Escutcheon. It only has a 1% chance of appearing, so leaving and reentering the area is going to be needed in order to spawn the chest. 

Omega Mark XII - The Great Crystal - Dhebon Jilaam Avaa

Omega Mark XII is considered the hardest boss in the "story game". The only harder fight is Trial 100. Omega can be found in Dhebon Jilaam Avaa of the Great Crystal. 

Great Crystal

There is the assumption that you've already defeated Ultima, and have access to all of the Magicks and Technicks in the game. You want to have 3 Bubble Belts. You want to be around level 77 to complete this battle. There is also an assumption that, in the Great Crystal, you have activated the Way Stones between A Vikaari Kanbhru Ra (XX) and Dha Vikaari Dhebon Ra (XIX)

This is the route you want to take to get to Omega Mark XII:

  1. From A Prama Vikaari, go to A Vikaari Dhebon.
  2. Use Way Stone IX to go to Way Stone X at Da Vikaari Kabonii. 
  3. Go to A Vikaari Kanbhru Ra, and use Way Stone XX to go to Way Stone XIX at Dha Vikaari Dhebon Ra. 
  4. Go to Kabbhru Pis (where the Save Crystal is), then head to Dha Vikaari Uldobi. 
  5. Use Way Stone XVIII to go to Way Stone XVII at A Vikaari Kanhbru.
  6. Go down to Uldobi Jilaam Avaa. 
  7. Then (depending on which Virgo Gate is open) either go straight to Uldobi Jilaam Praa'vaa, or go via Uldobi Jilaam Pratii'vaa and Sthanna Libra. 
  8. Head to Uldobi Jilaam Praa, and then head to Sthanna Capricorn. 
  9. Interact with the Capricorn Gate, and then take this route: Uldobi Jilaam Praa > Uldobi Jilaam Praa'vaa, Sthanna Libra (Ignore the Gate Switch) > Uldobi Jilaam Pratii'vaa > Uldobi Jilaam Pratii. Touch the Capricorn Gate here. 
  10. Then head to Uldobi Jilaam Avaa
  11. Go to A Vikaari Kanbhru and use Way Stone XVII to go to Way Stone XVIII in  Dha Vikaari Uldobi. 
  12. Go up to Sthaana Aquarius and interact with the Gate Switch. 
  13. Travel back to Dha Vikaari Uldobi and use Way Ston XVIII to go to Way Stone XVII at Uldobi Jilaam Avaa. 
  14. Then (depending on which Virgo Gate is open) either go straight to Uldobi Jilaam Praa'vaa, or go via Uldobi Jilaam Pratii'vaa and Sthanna Libra. 
  15. Go to Uldobi Jilaam Praa and then touch the Aquarius Gate. 
  16. Head into Sthanna Taurus and interact with the Gate Switch. 
  17. Then head back to Uldobi Jilaam Pratii, using this route: Uldobi Jilaam Praa > Uldobi Jilaam Praa'vaa, Sthanna Libra (Ignore the Gate Switch) > Uldobi Jilaam Pratii'vaa > Uldobi Jilaam Pratii. Touch Taurus Gate 1 here. The correct gate will be on the path opposite to the one you entered. 
  18. Go down to Dha Vikaari Sirhru Si and interact with Way Stone XXI to go to Way Stone XXII at A Vikaari Uldobi Si.
  19. Go to Dha Vikaari Dhebon Si and interact with Way Stone XXIII to go to Way Stone XXIV at A Vikaari Sirhru Si. 

Omega Mark XII is found in the next area. There are a few methods that can be used to take down Omega Mark XII, but I will list the one I used and found to be the most effective. It's basically a Brute Force Method. The idea is that you use a Foebreaker to use Wither until you make Omega's damage be as small as possible. You then use Expose to lower Omega's defense, making your attacks more powerful. 

This was my setup for a party of level 77s:

Knight/Bushi - Equipped with an Ultima Blade and Bubble Belt. This was my primary attacker. 

Foebreaker/Shikari - Equipped with a Scorpion Tail and Bubble Belt. 

White Mage/Time Battle Mage - for healing and support, equipped with a Bubble Belt. 

Gambits: 

KnightFoebreakerWhite Mage
Foe: any > AttackFoe: any > Wither
Foe: any > Expose
Foe: any > Attack

Ally: [Knight] > Decoy
Ally: HP < 40% > Curaja
Ally status = KO > Arise
Ally: Any > Protectga
Ally: Any > Hastega
Ally: [Knight] > Bravery
Self: MP < 20% > Hi-Ether
Foe: any > Attack

Fight

  • Level: 99
  • HP: 1,037,069
  • Steal: Knot of Rust (3%)

The Brute Force Method is by far the easiest way of doing this fight. It'll be intense to begin with, as Omega's attacks will be powerful. But as your Foebreaker keeps using Wither, the damage taken will slowly but surely drop to a very manageable amount. Using Bubble Belts just saves time from having to cast Bubble. 

Keep the Battle Speed at x1 to begin with, and when everything is settled, you can speed it up. Once Wither starts to miss, turn that Gambit off. When Expose misses, turn that Gambit off. By that point, Omega will take a lot of damage. 

Having your White Mage have an Attack Gambit is merely additional support for when there are no other spells to cast. 

Using this set up will make Omega Mark XII go from being the hardest boss in the game, to one of the easiest. It should take around 10 minutes to complete the fight with minimal deaths.

There are a lot of videos out there showing how to use Reverse to kill Omega Mark XII. I couldn't, ever, get that method to work for me. The method above worked on my first attempt. 

For defeating Omega Mark XII, you'll get the Omega Badge, which is needed to create the Wyrmhero Blade. This will also probably be the last enemy you need to complete the Bestiary. 

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