The Keeperbound update in Fisch added several new relics, but one of the most useful rewards right now is the Invincible Relic. This special relic is tied to a hidden side quest, and many players are trying to unlock it because of the powerful enchant it gives at the Keeper’s Altar. If you are confused about where to start, what NPC to talk to, or how to complete the quest, this guide will walk you through the full process step by step. Also check out our Fisch Codes for more rewards!
Where to Start the Invincible Relic Quest
To begin the Invincible Relic quest, head over to Ancient Isles. Once you arrive at the small village area near the merchant, look for an NPC called the Apprentice Archaeologist. This NPC is holding the new relic quest connected to the Keeperbound update.
After speaking with the Apprentice Archaeologist, you will receive a special objective that requires you to catch an Ancient Megalodon. This is the main requirement for unlocking the relic. One important thing to know is that simply trading for the fish or already having one in your inventory will not work. The game specifically requires you to personally catch the Ancient Megalodon yourself for the quest to count.
How to Catch the Ancient Megalodon
The hardest part of this quest is finding and catching the Ancient Megalodon. Since it is a rare fish, you may need to spend some time fishing before it appears. Make sure you bring a strong rod with high durability and good control stats because the Ancient Megalodon can be difficult to reel in. Using Keeperbound rods or stronger late-game rods will make the process much easier.
Many players also recommend fishing during active server events or luck boosts since these can slightly improve your chances of finding rare fish. If possible, use powerful enchants and keep your rod power level high before attempting the catch. Once the Ancient Megalodon finally bites, successfully reel it in and the quest objective should instantly update on the top left side of your screen. Returning the Quest:
- After catching the Ancient Megalodon, go back to the Apprentice Archaeologist in Ancient Isles.
- Speak with the NPC again and choose the dialogue option confirming that you caught the fish.
- Once the quest is completed, you will receive the Invincible Relic as your reward.
- This relic can now be taken to the Keeper’s Altar inside the Sovereign Mines during an active Power Burst.
What the Invincible Relic Does
The Invincible Relic is mainly used for a special Keeperbound enchant called Unshakable. This enchant is considered one of the strongest defensive enchants currently available in the game. The Unshakable enchant gives:
- Infinite strength on the equipped rod
- +200 durability bonus
Because of this, many players are using it for difficult fish catches, especially during harder weather events and late-game fishing areas. The enchant is extremely useful if you struggle with rod stability or difficult catches that normally drain durability very quickly.
How to Use the Invincible Relic
To use the Invincible Relic, head back to the Keeper’s Altar inside the Sovereign Mines. Wait until a Power Burst event activates so the altar pillars rise from the ground. Once active:
- Insert the required relics into the pillars
- Equip the Sovereign Relic
- Use the Invincible Relic combination
- Enchant your Keeperbound rod
Remember that Keeperbound enchants replace your normal enchants completely. Your rod will also become Keeperbound, meaning you must talk to the Keeper Warden if you ever want to remove the enchant later.
For most late-game players, the answer is yes. The Unshakable enchant provides huge value, especially if you regularly fish difficult targets or participate in Sovereign weather events. Infinite strength alone makes certain catches much easier, while the extra durability helps reduce failures during long fishing sessions. It is especially strong on rods designed for stability and endurance builds.
Even though catching the Ancient Megalodon can take some time, the reward is definitely worth the effort if you want one of the strongest Keeperbound enchants currently available in Fisch. The Invincible Relic is one of the standout additions from the Keeperbound update in Fisch. While the quest itself is fairly simple, the real challenge comes from successfully catching the Ancient Megalodon needed to complete it.
Once unlocked, however, the relic gives access to one of the best utility enchants in the game, making it a valuable upgrade for serious players. If you are planning to push deeper into late-game fishing content, this is definitely a relic you should try to get as soon as possible.