Octopath Traveler 0 The definitive mid-game strategy! A complete master guide from Wish Veil restoration to collecting all eight sacred treasures and seal keys and releasing 99999 damage.

In the middle of Octopath Traveler 0 (hereinafter referred to as Octopath 0), the difficulty of battles increases rapidly as the story gets into full swing. By proceeding with the reconstruction of Wishvale and strengthening its facilities at this timing, the training efficiency will be dramatically improved and the transition to the second half will be much smoother.

This guide will comprehensively summarize the priorities for restoring Wishveil, joining Hydne and Olberic, the secret to breaking the damage limit, obtaining the eight sacred treasures on the isle of the heroic spirits, and where to collect all eight types of Seal Keys. If you clear these, you will be able to kill the mid-stage boss in one blow and earn experience points at a faster rate. Please aim for a recommended level of 30 to 50.

1. Solidifying the foundation for Wishvale reconstruction: Optimal route to raise town level and strengthen facilities

Wish Veil is the key to conquering Octra 0 in the middle stages, and by proceeding with reconstruction, the town level will rise and new facilities will be released one after another. The starting point for reconstruction is linked to the progress of the main story “The One Who Lights the Torch,” and you will be able to build a base after clearing Chapter 1. First, use the construction workshop to increase the number of private houses, and gather residents from various places with the “invite” command. The trick to allocating residents is to prioritize those with appropriate skills for each facility. For example, a store would have a “purchasing” or “connoisseur” person, and a training center would have a “technical training” person. This maximizes production efficiency.

The highest priority reinforcement facilities are in the following order:

• Base (bar): Fully available at Town Level 2. You can now organize your party directly from the main menu, making battle preparations dramatically easier. Use shining foundations to accelerate upgrades.
• Priest (church): Build at town level 5. Consumes 30 stones and a musician's instrument. When you upgrade to grade 3, blue treasure chests will be unlocked, allowing you to obtain EXP boosters and powerful equipment (e.g. foreign costumes, tactician's shield). Blue treasure chests are essential for strengthening your battle power in the mid-game, and there are many in dungeons with a danger level of 50 or higher.
• training center: Town level 4, after clearing the sub-quest “Light of Restoration Part 4”. At grade 2, standby members will be able to learn special moves, and experience points and JP will be automatically distributed. At grade 3, 12 people can be trained. Purchase HP recovery grapes from the Shepherd's Rock tool shop and use them.

When you reach town level 6, the cauldron (achievement stand) and museum will be unlocked. Insert cyanite into the cauldron and unlock travel anywhere (fast travel), surrounding research, and animal talk in sequence. The main sources of blue coal are symbol enemies and specific treasure chests, and it is recommended to stock 6 or more. The arena (monster arena) will be set up in the sub-quest “Monster Arena” after the museum is constructed. Collect upper iron materials, upper stone materials, and monster traps at Flame Grace snowy roads, etc., and earn over 2000 experience points per battle by capturing bosses and refighting them.

In order to accelerate reconstruction, we will clear the sub-quests of the “Lights of Restoration” series in parallel. Break through town level 4 by securing 15 or more residents and start trading to make the leaf more efficient. This route lays the foundation for the midfield.

2. Detailed steps to release powerful allies: Joining Hydne and introducing debuff tactics

The key to stabilizing mid-game battles is increasing allies. In particular, it is essential to add the thief-type debuffer “Hydone”. The route to join Hydne is as follows:

1. Encounter Hydne for the first time on the Sunshade Sand Path and win the battle.
2. We will have a rematch on the Flame Grace snowy road.
3. Clear the sub-quest “The Value of Life” (Sunshade Sand Road Revisited).
4. After clearing Chapter 5 of “The One Who Lights the Torch,” “Vampire Prince and Hydne” will occur during ship repair (Ripple Tide, 80,000 Leaf). You will join after winning the final battle at the Vampire Lord's hideout.

Hydne's support abilities “Steal in passing'' and “Last Act'' strengthen item acquisition and automatic actions during battle. Layer debuffs with daggers, swords, and dark attributes to efficiently reduce boss shields. It is safe with recommended level around 40 and full use of supporters.

Olberik is a swordsman and is the key to firepower. After clearing the final chapter of Section 3 “The One Who Masters Everything”, you will join the NPC event “Encounter with Olberic” in the upper right corner of Shepard Rock. Confirmed by “hearing” from Noble Ivan → Exploring the Shepherd Rock mountain path → winning the battle. Compatible with swords and spears, learning all battle abilities will trigger the damage cap to be released to 99999.

By adding these two people, the party balance will be perfect and you will be able to complete the mid-game dungeon.

3. The secret to breaking the damage limit: Achieving 99999 blows by using Olberik

Octora 0's damage cap is initially 9999, but after joining Olberik and learning all of his battle abilities with select abilities, it increases to 99999. The steps are as follows:

1. Olberic joins.
2. Master your abilities at the training center.
3. It can be activated with a maximum boost when combined with a powerful sword special or multi-stage hit technique (Senbon Spear, One-shot Claw).

Support ability can be shared in standby position. Add it to the main character or Alexia to complete a party specializing in firepower. In the boss battle, stack up the extreme power and evolution heavy fangs and hit them immediately after the shield breaks. With this breakthrough, the mid-stage boss (e.g., the Phantom of the Great Master) becomes an instant death level.

4. Conquering the Heroic Spirit Island: Complete acquisition of the eight sacred treasures and techniques for defeating the boss

Heroic Spirit Island (open sea, accessed after releasing the ship) is a highly difficult area recommended for Lv60. After defeating the illusion of a powerful martial artist (multiple shields, weaknesses: spear, axe, bow, wind) in the sub-quest “8 Sacred Treasures”, use the seal key on the 8 doors. Each sacred treasure has special effects (sword: critical UP, ax: high attack, etc.). Full of supporters, we will challenge with limit-breaking firepower. With all Sacred Treasures equipped, you will be in a state of unparalleled attribute resistance.

5. Collect all 8 types of seal keys: detailed locations and recommended route map

This is the prerequisite for obtaining the Eight Sacred Treasures. All eight locations are as follows:

• Exploration/Dagger Key: Serpent's Den (Flatland, Lv6). It's on the glowing dot on the left side of the cave.
• sword key: Valore Tavern. Automatically when joining Viator.
• ax key: Victor Hollow. “Purchase” (Lv34) to a fledgling antique dealer.
• spear key: A small island in the open sea – East (Coastland, Lv50). It is located at a bright spot in the center of the island.
• Mystery/Fan Key: Near Suhratarja Inn. “Beg'' (Lv39) to the “explorer who pursues mysteries.''
• wand key: Grandport stall. “Beg” (Lv39) to the “black market merchant in the port city”.
• book key: Hot Spring Cave (Highland, Lv45). It's in the treasure chest on the right.
• bow key: East Shiflo riverbank treasure chest.

You can choose from 3 types of character makeup. After acquiring the ship, collect them all at once while sailing around the open sea, and then head straight to the islet of the Heroic Spirits.

6. Linked use of blue treasure chests, arenas, and training grounds: Revolution in training and exploration

The blue treasure chest will be opened at church level 3. Collect mid-game divine equipment such as the prosperity amulet and the secret of the turbulent throwing knife. Have a rematch of the captured boss in the arena (41000 experience points/battle possible) and improve your secrets in the training center. Travel anywhere on the cauldron to increase the efficiency of treasure chest circulation.

7. Equipment renewal techniques for shops and focus release: Raise your military strength through mass production of top-of-the-line items

You can increase the valuables quota at shop grade 3, and purchase sacred equipment in bulk by unlocking the focus (high rare shop). Give trade items (such as the Necronomicon) to Ludo and obtain multiple items by upgrading. This is essential for updating equipment.

8. Complete summary of mid-game strategy: Now the path to being unrivaled in the second half is confirmed

Prioritizing the restoration of Wishveil, we will strengthen bases, churches, and training centers, and secure debuffs and firepower with the addition of Heidne Olberic. By collecting all the seal keys, you can unlock eight kinds of sacred treasures, and by breaking the limit, you can revolutionize the damage. If you follow these rules, your mid-game clear time will be halved and your experience points and leaves will increase dramatically. The recommended party is Olberic (firepower) + Hydne (debuff) + healer + main character. In addition, don't forget to increase your friendship and strengthen the residents by “asking more”. Enjoy Octra 0's epic adventure to the fullest.