Lost Odyssey

This guide will tell you how to beat the hardest boss in the game in 4 turns or less.

The Boss may not follow the order given, but I find that this is what he does the majority of the time.*

First off, you need to have all 4 immortals in your party and have them at least lv 70 or higher. Then pick a mortal(preferably Sed) to be the 5th member.

Have your immortals have a skill set with these skills in it:
Reduce Casting Time 1
Reduce Casting Time 2
Spirit Magic Lv 8
White Magic Lv 8
Crisis Concentration
Turn Tail
HP Boost 1,2,3,&4
Persistence
Double-Cast
MP Conservation(not needed, but useful)
Ailment Resistance

Xebu said: [Head Into Dungeon]

Go down to the 24th floor, there you need to walk around and get into a fight with the mini boss "Supreme K". Defend every attack until he uses the spell Divide. He should then bring everyone's health down to one(with the help of Persistence), except for Sed, who should be dead. You then should flee with Turn-Tail(have it on everyone so there's a higher chance you will make it out without a casualty)

If it did not bring everyone's health down to 1, then flee the battle, and use a minor healing spell or potion on them. You then should go back into battle with "Supreme K" and let him cast Divide once more, and that should have your whole party evenly at 1 health, except for Sed.

[Preparations for Professor K]

Use a minor healing potion, or the weakest healing spell to heal your immortals once. That way they should be at a health anywhere between 100 and 111, maybe a little higher. Then heal Sed completely.

The reason we want the immortals to have such low health is so that they can cast Reversa to do some major damage. Also the reason we give them the potions is so that Persistence would let them live through an attack.

Change your formation so that the immortals are in the back, and your mortal is in the front. This is so the mortal can take the physical attack/s.

[The Battle Begins]

The battle should only take a maximum of 4 turns.

Note: He will do counter attacks

Note 2: In round 3, replace Ming with Sarah if Sarah has more maximum health(not current health).

[Round 1]

Have all the immortals cast Reversa twice with Double-Cast. You should do around 60,000 damage depending on your level. All Professor K should do at this point is cast a powerful Regenerate spell.

[Round 2]

Professor K will regenerate 20,000 HP, but don't worry, it wont be a problem. He will also cast Reflect, which wont be a problem either if you follow directions.

Now this will be the tricky part, but if you follow my directions, it shouldn't be hard to do. Have Seth, Ming, and Sarah do double cast with this order of spells. Cast Reflect on themselves, except for Ming, who will cast Reflect on Kaim. Then when you cast the second spell for your Double-Cast, have them do Virus on Professor K. It will get reflected back at you(which you have Ailment Resistance so it wont matter), and it will deplete his reflect(which can only take 3 spells before being warn off). DO THEM IN THIS EXACT ORDER OR HE WILL REFLECT YOUR VIRUS AND YOU WONT BE ABLE TO USE REFLECT. Then have Kaim Double-Cast Reversa, to do 20,000 damage, effectively negating his next regenerate at the beginning of the next turn.

[Round 3]

Professor K will heal. He will then do Annihilation at the beginning or end of this turn(reflect will reflect it, keeping you safe from damage). If you did the last turn correctly, then only Ming will die, unless Sed is still alive, then he will die as well.

Then proceed to Double-Cast Reversa, dealing a hefty amount of damage. If he does not die this turn, then continue to Round 4.

[Round4]

This round is simple really. Professor K will heal again, and you will Double-Cast Reversa on him, sending him to his grave. If he didn't die this turn, then you did something wrong, or you have really bad luck.


Credits: Turonel, the guy who pretty much made up this tactic. Then there's me of course. I added in that Reflect would reflect his Annihilation spell. Xebu added in the tip to take off regenerate items/skills.

I cannot take credit for this method, as it goes to NoKtoLive youtube titled "Killalon - Lost Odyssey DLC Boss - Safest Method"

I was level 86 for immortals and 78 Sed
Sed Front row, equipped with Gigantes Brooch, Enchanted Necklace, Accelerator
Kaim, Seth, Ming, Sarah back row.

Sed 7000HP
Kaim and Seth 9999HP
Sarah & Ming 7620HP

Immortals skills at a minimum
Persistence
Absorb all Elements
Ailment Resistence
Double cast
MP Conservation
Auto MP Recovery
Lv 8 Spirit
Lv 8 White/Black combo
HP Max Up (as many as needed)

Kaim and Seth add skills Reduce Casting 2 & 3
Ming and Sarah get Reduce Casting 1,2, & 3. (More in a second)

Continue to add other skills like counter if you wish, you will have time to set this up outside Professor K's door on the 26th floor. I added Mental stability 1 & 2 as well.

Round 1
Killalon starts first and cast Generatus
Your entire party cast Divide, double cast for immortals and one for sed = 9 times. Killalon may either cast forceus or 1600 regenerate on himself, in my instance it was forceus that hit Sed 3 times (left him with 400)

Round 2.
Killalon will cast reflect.
Sed cast Flarus
Sarah Cast Flarus, double cast Divide
Ming Cast Flarus, double cast Divide (Ming and Sarah Divide won't hit, but it delays how quickly Flarus is cast, the goal is to delay so Killalon can cast Reflect first, so these three Flarus will hit Killalon before Kaim and Seth go)
Kaim and Seth double cast Divide.

Round 3
Killalon may either charge for Annihilation or He may use the Kelo Cannon physical attack. If he cast Annihilation you will have time to Double cast Divide. If he uses his Kelo Cannon then he will go before you can cast Divide. Since you can't predict which one you have to play it safe, in the video he was charging for annihilation. For me he cast the Kelo Cannon. Regardless of what you will do your action is the same.

Sed Equip him with Spirit Magic lv 7 or above (so long as it has reversa) Have him cast reversa, he will cast this before Kelo Cannon. In my game Sed was at 400 out of 7000 HP, so it did a decent amount.

Kaim, Seth, Ming, Sarah will cast divide, and double cast reversa. This means you are protecting the inverse of any action Killalon may perform. If it is Annihilation he will be dead before you cycle through the spells. In my case, after Sed cast his Reversa Killalon cast kelo cannon. two of my part went down to 1 HP, (saved by Persistence) and two were at full health. Once my team went through the spells he was finished, having the reversa helped those who were hit down to 1 life.

If for some reason he lives after this round my guess is he would cast annihilation, in which case I was prepared to double cast spells based on each immortals HP.

I personally like this method because I don't have to fight any boss and reduce my health per the above method, and I don't have to cast reflect in round 2 and further delay killing him. This a 3 round Safe method. Its simple mathematics, you can even break down the point total and see if you will succeed.

Video ()

3rd round Death

Good guide by steath david, it shows the uses of the 1 magic casting you might want to add this but alot easier this way than the others. But to get this and the reduced casting 3 you have to have luck as they are rare drops from the steam k and supreme k on floor 19 and 24. The reduced casting 3 took 5 hrs to get.

The way I did this was the same set up of Sed front, Imortals behind, make sure you have full health and set up as the other above, but this is the differance keep full health then...

1st Round all double cast Divide
2nd round 2nd lvl Flare and reflect from imortals, sed change to asbord element from reduce casting 3 and have him cast divide. This will help with reflecting any nasty surpise if 3rd round goes wrong which it never has for me
3rd round all double cast divide

And its over......

The main thing you need with this is reduced casting 3, get that and the above will have the git dead in 3 rounds. I did it on lvl 90 with Ming an Sarah on 8000hp and with reduce casting 3 and didnt bother with the 1 turn cast

For this guide, you can complete the battle in 3 turns.
The boss has 104,000 health and heals 20,000 at the end of each turn, so the best way to kill him is to do it as quickly as possible.

Make sure that all your immortals are level 80+, and all have reduce casting time 2, and level 8 spirit magic. Persistence is also a must, and abilities such as lucky 0 magic damage are useful.

Before you enter the fight, ensure that all your immortals have low health (as in the other guide get them down to 1 then heal a bit). Also make sure that all your immortals have greater than 8,000 max health. I did it with less but I got lucky.

Go into the fight with Sed in the front, and you immortals in the back.

In the first turn, simply double-cast reversa with everyone. He will heal himself in between your goes sometimes, or sometimes use forceus which is generally taken by Sed.

At the start of the second turn, he will gain back 20,00 health but that does not matter. Here, there are several options. This is because he will nearly always cast reflect, so there are numerous ways to overcome this.

1. Simply continue doing what you were doing with the reversas. 3 reversa's will be reflected, and if you are lucky, everyone will survive, and he will be hit by 2, but that damage will be reversed by his health recovery. This is most likely to succeed if you fighters have high max health, as you will have to kill him next turn. The problem with this strategy is if 1 of your fighters is killed {two spells are reflected back on him}, you will not be able to do enough damage to him to kill him before he kills you

2. Cast a weak elemental spell with 3 of your immortals to remove his reflect, and then have 1 immortal double cast reversa. This is best if you have resistance to all elements, or can absorb all elements.

3. You get lucky, and he does not cast reflect, this way it does not matter what you do, as he should be dead at the end of the next turn anyway. {This is the way I ended up doing it}

He will recover 20,000 health again, and at the end of the 3rd turn he will cast annihilation, so you just have to hit him with 8 reversas which should kill him if you have done enough damage before.

This strategy was based on strategies from xbox360achievements.org

The other solutions mentioned here are excellent, but here's a slight variation I tried which managed to defeat Killalon in only 2 turns!

Put Sed in your front row, and Kaim, Seth, Ming and Sarah in the back row. Make sure that all of the immortals have the following skills equipped:

Persistence, Double Cast, Crisis Concentration, Reduce Casting Time 2, Nullify All Elements

Also make sure to have each mortal's max HP as high as it can go, by equipping HP Max Up 1-4 as necessary.

Equip Sed with Cursed Crest (so that he will be able to use Spirit Magic), Gigantes Brooch (to get his HP as high as possible) and Quad Element Seal (to protect against one of your own attacks).

Reduce everybody's health to 101 HP using the method described in one of the other solutions, and you're ready to fight Killanon! Everybody's favourite atrocious amphibian android.

Begin the battle by having everybody cast Reversa as many times as possible. Make sure your immortals double-cast it, and you'll manage to get a whopping 9 Reversas in at once. Depending on the Max HP of your characters, this should reduce Killalon's health by around 80%! Killalon seems to always use his regeneration spell on the first turn, so don't worry about getting hit by a rogue Annihilation. He'll regenerate about 20% of his health, leaving him at a meagre 40% of his original health.

Now, because you've hit him with magic-based attacks, it seems like he always responds by using Reflect on his next turn. You do NOT want to have Reversa reflected back at you, as while it may be possible to brace it with Persistence, things will typically go arse-ways. Reflect can be dissipated by hitting it with three magic attacks, however! So you'll want to get your party members with the least max HP (because their Reversas aren't as powerful) to hit Killalon with three of the quickest spells you can damage him with, before nailing him with every last Reversa you've got.

So, for example, have Sarah double-cast two Flares at Killalon, have Ming double-cast a Flare and Reversa, and have everybody else Reversa as many times as they can manage. If everything goes according to plan, Killalon will cast Reflect, which will be destroyed by the Flares, making way for your avalanche of Reversas. Killalon should be no more!

If you're worried about not getting all three Flares in on time due to slow casting, you can afford to lose one of your Reversas. So in this example, have Sarah double-cast two Flares, and have Ming only single-cast Flare. You'll still inflict more than enough damage to finish him off. =)

I defeated him with my party between levels 80-99, but your level isn't extremely important in this battle. The main thing is the max HP of the characters involved, and their casting time. Good luck!

Finally, there is a solution without using Reversa throughout the battle. So let's begin.

Requirements:

Kaim, Tolten, Seth, Ming and Sarah at level 99.

Kaim, Tolten and Seth are front row while Ming and Sarah are back row.

Everyone to start at full health.

All immortals to have in Skill list -

Reduce Casting Time 3 / One Turn Cast (Gained via dropped item of Steam K or Supreme K)
Lucky 0 Magic Damage
Lv 8 Black - White Magic / Lv 8 Black Magic + Lv 8 White Magic
Lv 8 Spirit Magic
Double-Cast
Persistence
Absorb Attack
Absorb Magic
Absorb All Elements
Anti - Kelelon
Crisis Defence

Kaim and Seth to have in Skill list -

Ultimate Hit
Attack Boost 1
Attack Boost 2

Ming and Sarah to have in Skill list -

HP Max Up 1
HP Max Up 2
HP Max Up 3
HP Max Up 4

Tolten to equip Ogre Bangle (Attack Boost 2) or Anti-Kelolon

If you do not have all of the above, especially Reduce Casting Time 3, then play will probably differ to my experience in beating this boss.
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Turn 1
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Killalon will cast Regenersus but all you are going to do is Cast Powerus and Faster on Kaim, Seth and Tolten.

(i.e. Ming casts All - Powerus and Faster, Sarah casts Faster and Faster.)
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Turn 2
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Killalon will cast Reflect. You will cast Reflect on everyone.

(e.g. Kaim, Seth and Sarah casts Reflect on themselves and Ming casts Reflect on Tolten and herself.
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Turn 3
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Killalon will cast either Prismus or Forceus or use the skill Kelo-cannon. You will cast a level 1 black magic spell with Seth, Kaim and Ming. This process ensures that Killalon's Reflect is destroyed.

(e.g. Kaim, Seth and Ming cast Flare, Sarah Double-Casts Divide.)
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Turn 4
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Killalon will either use All-Fall or Kelo-Cannon. You will finally start doing noticeable damage! Kaim, Seth and Tolten will use Ultimate hit while Sarah and Ming Double-Cast Divide.

At the beginning of the next turn he will be on about 90'000 HP.
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Turn 5
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Killalon will use Annihilation and you will Double-Cast Divide with Sarah and Ming.

At the beginning of the next turn he will be on about 30'000 HP.
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Turn 6
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Killalon will use either Annihilation again or be a royal pain and use Reflect. You will Double-Cast Divide with Sarah and Ming again. If he has used Reflect (Which only seems to be one in four times.) then you will have to do a few more turns of draining the reflect spell followed by tons of Divide spells and Reversa spells from the other immortals when they are free again.
This should finally put Professor K with the fishes... or frogs... wherever it is Kelolons go.
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Killalon is a random boss. This is the only problem when writing a guide on him.

If you are unlucky enough to have one of your characters knocked out then revive them because they can keep the pressure on Killalon!

If there are any differences, do not fret! you can still use Divide if your health is full or Reversa if your health is low.

If there is anything you would like to know then either PM me or write a comment for me as (no bragging intended) I'm pretty glad I worked this method out and would love to help anyone who doesn't understand any of my method.

And that's a well earned achievement unlocked!

(P.S. on turn 3, I used double cast Divide with Sarah which seems to make him use his rubbish abilities and die on turn 6 where as not doing so made him use Reflect a second time around. Not sure if there is a connection but feel free to try!)

I just wanted to add to for those who end up going past 3 or 4 rounds, Annihilation is reflect-able back at Killalon. It wont do any damage, but as this is probably his strongest attack, this is an easy way to stay alive if you mess up. Additionally, unless he casts something in between like Forceus, you can block Annihilation 3 times.