
Sailor Piece requires you to farm and loot different materials to upgrade your weapons, increase damage output, and also improve your health and defense levels. While there are many items in the game, the legendary items like the Reiatsu Core are very important ones as they are rare, and most of the items can be found via boss drops.
If you are looking for the Reiatsu Core and want to know how you can get hold of this legendary item, this is the guide for you.
What is the Reiatsu Core in Sailor Piece?
The Reiatsu Core is a legendary item that can be used for Ascension 4 and to obtain the Aizen Sword. You can get the Reiatsu Core from the Aizen drop by beating the Aizen boss.
Why is the Reiatsu Core Important?
Reiatsu Core is an important material as it helps with improving your abilities, or even going for a specific Reiatsu build like the Sukuna V1 or V2. Having the Reiatsu Core will also improve your energy efficiency and cooldown rates. With it being rare, players are eager to get hold of the Reiatsu Core at any cost.
How to get the Reiatsu Core in Sailor Piece?
Now that you know what the Reiatsu Core is and why it is important, here are the steps that you can follow to get it instead of wasting your time hunting in hopes that you find it.
- From the Starter island, walk towards the teleport portal and select the Hueco Mundo location.

- Once you teleport to Hueco Mundo, look to your left to spot the dome building. Approach the building, and you should see the Aizen boss right in front of it.
- If you do not see the Aizen boss right there, wait for a while, as the boss appears every 5 minutes.

- Once you defeat the Aizen boss, you get a 3% drop rate of the Reiatsu Core.
- If you want more of the Reiatsu Core, you can always fight the Aizen boss anytime you want, as long as you know when the boss is going to spawn.
Important Tips To Get the Reiatsu Core
Here are some tips that you need to keep in mind before you go on your quest to get the Reiatsu Core.
- Make sure to level yourself up and complete all of the quests. Without the quests completed, you will not see the option to teleport to Hueco Mundo
- You can always beat the Aizen boss as many times as you want to obtain the Reiatsu Core.
- Use good builds to improve and increase the boss drop chances.
- Battle bosses in groups or with your friends. This helps you defeat the boss quickly and obtain the necessary rewards from the drops.
- Be around the boss’s spawn area since Aizen will appear every 5 minutes.
FAQs
Q: What is the HP of the Aizen boss?
Ans: The Aizen boss has 29 million HP.
Q: What is the drop rate for Reiatsu Core from Aizen?
Ans: Reiatsu Core has a drop rate of 3%
Q: What is the respawn rate for Aizen?
Ans: Aizen respawns at Hueco Mundo near the dome building every 5 minutes.
Signing off…
This is everything that you need to know about the Reiatsu Core and how you can get it to upgrade your weapons and your character’s damage, efficiency, and cooldown. If you haven’t completed the older quests in Sailor Piece, now is the time to do so so that you can unlock Hueco Mundo.