Lost Odyssey Walkthrough

8. Seeker of the Deep DLC

Seeker of the Deep DLC (100 G)

This DLC adds a bonus dungeon available in disc four. In particular, it's available since the beginning of what in the guide was the second part of that disc's walkthrough.

If you haven't reached that point of the game yet, be warned that I'll name some story related characters in the strategy for the boss at the end of this place.

Introduction
This dungeon has extremely strong enemies, stronger than those in the Temple of Enlightenment, and the boss at the end of it is much stronger, even compared to The Immortal One fight in the Backyard (which was the strongest enemy of the main game). High level characters are not recommended: they are essential. Keep in mind that there are no save points (and there aren't checkpoints either); the closest "save point" is the world map outside.

Where is this place?
The dungeon is located here, and as you can see, it's underwater in a region of the ocean which you can only reach after some events in disc four.

Enemies
The random encounters are very dangerous, but they will net you level ups all the way to level 99 (not every one of them, but those you want to fight are). If you haven't reached level 60 yet, do so with the Hellish Kelolons inside the Temple of Enlightenment: here it's too dangerous. I suggest turn-tailing all the fights except:

- Adamantine Kelolon enemies: they level you up (found mostly in the last levels)
- Steam K: found in levels 16 to 19, he can drop the Accelerator which can teach you Reduce Casting Time 3. This is an essential skill, and he can level you up to level 80. Fight these enemies until you get the Accelerator
- Supreme K: found in levels 21 to 24, he can drop the Rose Quartz which can teach you 1 Turn Magic Cast. However, this sounds better than the Accelerator, for a purpose of strategy you don't need (actually, you mustn't have) this skill, so you can avoid spending time with these drops. He can level you up to level 99

- Prototype 3: found in levels 11 to 14, he can drop the Illusionist Gauntlet which can teach you Spell Counter 2. Not necessary
- Sky Reaper: found in levels 16 to 19, he can drop the All-Round ring (Damage Up Lv 3+, Critical Up Lv 3+, HP Absorb Lv 3+). Not necessary at all since we won't use physical attacks

Adventuring in the dungeon
This dungeon is made so you can only go downwards. Every 5 floors (level 5, 10, 15, 20, 25 and also level 26 before the boss) there will be a no-monsters area with an elevator which can take you back to the first floor, and this is the only way out. The levels are all very simple and contain some glowing spheres which can tell you more about the events that happened in this place. You will find items here and there as well (they're all chests). Neither the items count for Treasure Trove, nor the new accessories' skills count for the skill master achievements.

When you return to the top, the only character here will give you items according to how deep you've gone.

- Down to level 5B: 3 Ambrosias
- Down to level 10B: 5 Godly Dragon Tears
- Down to level 15B: 5 Slot Seeds
- Down to level 20B: Mana Protector (Half All Magic skill attached to it)
- Down to level 25B: 10 Slot Seeds
- Down to level 26B: 5 Heal Fulls

The best thing to do is to reach the bottom getting the items, then go back up and return down speedrunning with Turn-Tail. If you manage to get the Accelerator from Supreme K enemies, which again is a must for the boss, go back to the first possible elevator and save outside. It takes about 10-15 minutes to turn-tail your way to the bottom.

Since the paths are extremely easy to follow, I'll just list the items.

Boss notes
See at the bottom for its preparation. I can already anticipate that there are no completely safe strategies and therefore it will be slightly luck based, but at most, on your third attempt you will defeat him if you follow the setup you find here. You will easily reach level 80+ on your way to farming the Accelerator, then you'll get level ups to level 99 fighting Supreme K (it won't take long). In 3-4 hours (2-3 to get the Accelerator, another one to reach level 99) you should be ready.

Accelerator note
Not much to say, but System Rings will make a huge difference on whether farming will be easy or not. The System Rings require 6 Power Reactors and 1 Adamantine Ore to create, and you possibly want a couple of them, if not even three, to make farming much quicker and safer (for the little risk you should fear at the levels you'll reach). The Adamantine Ores probably shouldn't be a problem to you, because treasures and Hellish Kelolons should have given you a good amount of them and you only need one for a System Ring. The Power Reactors on the contrary, can be farmed more slowly against the "Gigantes" enemies you can find in the Temple of Enlightenment (inside) -- they are the ones which look like centaurus and you surely found them on your way. It's probably worth spending some minutes in the Temple to get a total of 12 Power Reactors so you can create two System Rings, at least for Kaim and Seth.

Experimental Staff Research Division
- 5 Healing Tanks
- 3 Mana Bottles

Level 1B
- Slot Seed (northwest)

Level 2B
- 5 Magic Staff Fragments (center)

Level 3B
- Ruins Life (ring; east)
- 3 Magic-Storing Stones (north)

Level 4B
No chests here.

Level 5B
- Slot Seed (center)

Elevator north. Achievement:

Reached Conference Area 5B Achievement in Lost Odyssey

Reached Conference Area 5B16 (10)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modes
Go to Conference Area 5B in Professor K's Dungeon.

Level 6B
- 5 Beat Stones (west)

Level 7B
- Tidal Wave (ring; east)

Level 8B
- 3 Magic Staff Fragments (east)

Level 9B
No chests here.

Level 10B
- Sarbella Fang (east; has "Counter 2" skill attached)
- Slot Seed (west)

Elevator north. Achievement:

Secret Achievement Achievement in Lost Odyssey

Secret Achievement17 (10)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modes
Continue playing to unlock this secret achievement. (Secret)

Level 11B
- 3 Goddess Medicine (east)

From this level to level 14 you can fight Prototype 3 to attempt to get his loot (Illusionist Gauntlet). Divide and Reversa are the suggested offensive.

Level 12B
- Slot Seed (east)

Level 13B

No chests here.

Level 14B
- Hellish Dream (ring; north)
- Slot Seed (southwest)

Level 15B
- 3 Ambrosias (center)

Elevator north. Achievement:

Secret Achievement Achievement in Lost Odyssey

Secret Achievement17 (10)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modes
Continue playing to unlock this secret achievement. (Secret)

Level 16B
- Slot Seed (center)
- Bandit King (northeast)

From this level to level 19 you can fight Steam K enemies to attempt to get his precious loot, the Accelerator. Don't exit level 19B without it. Cast All-Shieldus and All-Powerus on the first turn (All-Shieldus is optional), then always cast one All-Generatus when you need healing. Spells won't work against this enemy, rely on physical hits. He can add Kelolon status and "shuffle" your formation. System Rings will work extremely well on him (a Perfect with Age of the King, Powerus and Attack Boosts deals even 8,000 HP of damage with Kaim level 70, and up to 11,000 HP of damage at higher levels). For some reason I found them much more common on the western side of Level 19B.

From this level to level 19 you can fight Sky Reaper to attempt to get his loot (All-Round ring). Usual offensive with Divide/Reversa.

Level 17B

No chests here.

Level 18B
- Air Master (ring; north)
- 2 Slot Seeds (west)

Level 19B
- 5 Mana Primes (west)

This is the last level where you can fight Steam K to get the Accelerator. It may take hours to find them and get the item, but it's worth it. I found a lot of Steam K walking all the time only from west to northwest and vice-versa. These monsters will also level you up until level 80, so it's not wasted time if you are unlucky with the drops (unless your characters start reaching the higher 80s). Be patient, it's worth it.

Level 20B
- 3 Godly Dragon Tears (west)

Elevator north. Achievement:

Secret Achievement Achievement in Lost Odyssey

Secret Achievement17 (10)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modes
Continue playing to unlock this secret achievement. (Secret)

Level 21B
- 5 Kelo-Vitamins (center)

From this area to level 24 you'll be able to find Supreme K (they are a stronger version of Steam K) which can drop the Rose Quartz and level you up to level 99. You will find them very frequently on 24B.

You'll also find kelolon enemies. You can easily grind with the golden ones, Adamantine Kelolons, double casting Divide with Kaim and Seth; avoid the Diamond ones, they can cast Death and won't take damage from spells.

Level 22B
- 2 Slot Seeds (west)

Level 23B
- 5 Goddess Medicine (center)

Level 24B
- End of Kelolon (ring; north)
- 3 Selolon's Souls (west)

Lowest Level (25B)
- 5 Godly Dragon Tears (east)
- 6 Kelolon Hearts (center)

Elevator north. Achievement:

Secret Achievement Achievement in Lost Odyssey

Secret Achievement17 (10)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modes
Continue playing to unlock this secret achievement. (Secret)

Lowest Level (26B)

Elevator northwest. Boss north.

DLC Boss - Killalon

Preparation
Kaim, Seth, Ming, Sarah: upgrade their HPs as much as you can (the magicians should have more than 6,000 HP, Kaim and Seth 9,999 HP); even PMs shouldn't miss, so try to get about 500 PMs. At level 99 with all the HP boosts, Ming and Sarah's should have more than 9,000 HP, and this means being almost certain of success.

Skills: Reduce Casting Time 2 and 3 for Kaim and Seth, don't equip 1 Turn Cast skill of the Rose Quartz. Lv 8 Black-White Magic, Lv 8 Spirit Magic, Persistence, Absorb All Elements, Double-Cast, Auto MP Recovery, MP Conservation on everyone. Reduce Casting Time 1, 2, 3 on Ming and Sarah, don't equip 1 Turn Cast on them either. "Half All Magic" skill from the Mana Protector (given by the guy up on the first level for reaching level 20B) may help for several thousands of extra HP, but it doesn't really matter.
Sed: equip the Accelerator (Reduce Casting Time 3), the Master Earrings (Lv 8 Black-White Magic), Gigantes Brooch. Make sure the Quad-Element Seal is available.

First row: only Sed.
Second row: Kaim, Seth, Ming, Sarah.

It is fundamental that you equip all and only the three Reduce Casting Time skills, and not 1 Turn Cast.

First turn:
Killalon will almost surely cast Regenerus, that will give him back about 20k HPs each end-turn.
Kaim, Seth, Sarah and Ming: Double-Cast Divide.
Sed: cast Divide.
You will hit his 108,800 HP very hard (with all characters level 99 and enhancements to the HP you should deal 90,000 HP of damage).
He might counterattack either with a spell who will heal 1,500 HP on him (Generatus), or with Forceus. If he does, he'll usually hit just the first-row-character, that is to say Sed; but since Sed will cast first this doesn't affect your damage output.

Second turn:
Killalon will almost surely cast Reflect on himself. If he doesn't, he can use something like Prismus or All-Fall, which are no problem, but also something much stronger which is purely VERY bad luck.
You have to hit him three times with a magic spell to vanish its effect. So, take note of what to cast:
Sed: switch Gigantes Brooch with Quad-Element Seal. Cast Flarus
Sarah and Ming: Double-Cast Flarus+Divide (read: you cast Double spell and you choose Flarus as first spell, and Divide as second)
Kaim and Seth: Double-Cast Divide
Owing to these commands, Killalon will cast Reflect first; then Sed, Sarah and Ming will cast Flarus, and the reflect effect will be vanished. Then Kaim and Seth will hit again.
It's important to underline this: if you double-cast while he is under reflect effect, just the first spell will hit. That's why Flarus and Divide will mean only Flarus coming back. Although it's very important that you choose Divide as the second spell, so the turnation will make your spells land AFTER he casts Reflect. This is the most important step of the whole fight.
If he used Reflect, he'll have about 23,000 HP left (including the healing he receives because of Regenerus), but if you're lucky he may even die (depends on how many times he counters with Generatus). If he didn't and he used Prismus or something like that he may even die on this turn too. If he decided to cast his Kelo-timate Hit, sorry but that can happen; rarely, but it happens.

Third turn:
If he casted Reflect, you won't have to worry about that now. He's probably going to use Annihilation, but he might also use something else which we'll take into account this time.
Sed: Divide
Kaim, Sarah and Ming: Double-Cast Divide+Reversa.
Seth: Double-Cast Divide.
NOTE: if your characters are all level 99 and you gave Ming and Sarah all the HP boosts (so they have more than 9,000 HP), use Double-Cast Divide+Reversa with Seth too. If they are weaker (meaning Ming and Sarah have less HP), go with double Divide by Seth (only by Seth!).
Things might develop in two different ways according to what Killalon does. If he's charging Annihilation he would hit last, therefore characters will certainly be able to hit (and kill him) before. If he's not charging Annihilation, he will cast some powerful spells which means characters left at 1 HP (Sed is dead) and 22,000 HP of damage to the boss, and there will still be another turn; this is only if Sarah and Ming are "weak". If the second scenario happens, but your Sarah and Ming have 9,000+ HP, the boss will actually die because your damage would be far past 30,000, more than enough to finish the fight.
If he didn't use Reflect on his second turn, just play the third one as the second one and he'll die.

Fourth (optional) turn:
He's almost dead, finish him off with Divide and Reversa.

This is it. Some people have witnessed that rarely, but really rarely, the fight can go differently. However, as I previously said there's no 100% sure way of defeating him. You'll be close to a 95% chance of success with this though, and that's fair enough.

Another thing which can slightly change the result of the fight is how many times he uses Generatus as a counter. It's true that he only heals for 1,500 HP, but it's also true that it can stack and at the end this may mean another turn. This is a minor problem, and luck must turn against you for it to turn the end of the fight, especially if you have leveled characters (you should kill him with 20,000 HP of damage still coming on the way by Kaim and Seth, but he should die before taking them).

Here's a video of this being done:

Beating the hardest boss of the game earns you the last achievement:

Secret Achievement Achievement in Lost Odyssey

Secret Achievement116 (50)

Offline Required - This achievement requires play in offline game modesSingle Player - This achievement can be obtained in single player game modes
Continue playing to unlock this secret achievement. (Secret)

Congratulations for completing the DLC and thanks for reading!

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