Phantom Blade Zero Twin Fish Pendant Explained

The twin fish pendant in Phantom Blade Zero is a key item that unlocks a hidden side quest and provides a passive damage bonus against aquatic-type enemies. You obtain it by defeating the optional boss, the Twin Serpent, in the submerged temple of Kuiyun. This article explains its exact effects, how to use it, and what to do if it doesn’t appear in your inventory.

Formula

The calculator above estimates your fishing efficiency in Phantom Blade Zero. The catch rate is calculated as:

Catch rate = (Fish caught ÷ Time spent) × 60

Where:

• Time spent – minutes you actively fished (excluding menu time)
• Fish caught – number of fish you reeled in during that time
• Result – fish per hour, a standard measure of farming efficiency

The average time per fish is simply time divided by catches, giving you the reciprocal view.

Worked Example

Using the default values: you fish for 30 minutes and catch 12 fish.

Step 1: Catch rate = (12 ÷ 30) × 60 = 0.4 × 60 = 24 fish per hour.

Step 2: Average time = 30 ÷ 12 = 2.5 minutes per fish.

This matches the calculator output exactly.

What the Twin Fish Pendant Does

The pendant is a trinket that grants a 15% damage increase against enemies classified as “aquatic� – this includes water-serpents, tide-walkers, and any boss with a water-based moveset. It also reduces water-type damage taken by 10%. These effects stack with other damage modifiers, making it valuable for late-game areas like the Sunken Grotto or the Flooded Ruins.

Importantly, the pendant is not required to complete the main story. It is a pure optional upgrade for players who want to optimise their build for water-heavy regions.

How to Obtain It – Step by Step

1. Progress to Chapter 3, where the Kuiyun temple becomes accessible.
2. Find the hidden underwater entrance behind the large waterfall in the northwest corner of the map.
3. Defeat the Twin Serpent boss – it has two health bars and uses a mix of water jets and tail sweeps.
4. After the fight, loot the chest that appears at the back of the arena. The pendant is inside.

If you already cleared the area before learning about the pendant, fast-travel back to the Kuiyun shrine and re-enter the temple. The chest respawns once per playthrough, so you cannot miss it permanently.

Common Problems and Misconceptions

A frequent issue is that players defeat the Twin Serpent but do not see the chest. This happens when the boss was killed during a co-op session – the chest only appears for the host. If you were a guest, you must defeat the boss again in your own world.

Another misconception is that the pendant increases all damage. It does not – it only affects aquatic enemies. For general use, other trinkets like the Iron Talisman provide a flat 5% damage boost that applies everywhere.

Some players also confuse the twin fish pendant with the “Twin Carp Charm� from the fishing mini-game. They are different items. The charm increases fishing luck; the pendant is a combat trinket.

How to Use It Effectively

Equip the pendant in any trinket slot – it takes one of three available slots. For maximum effect, pair it with a water-resistance set of armour if you plan to fight aquatic bosses. The damage bonus applies to both melee and ranged attacks, so it works with any weapon build.

When farming for materials from aquatic enemies, the pendant speeds up kills noticeably. For example, killing a Tide-Walker normally takes 12 hits with a standard sword; with the pendant, it takes about 10 hits – a 15% reduction in time.

Comparing with Other Trinkets

Here is how the twin fish pendant stacks against other common trinkets:

• Twin Fish Pendant – 15% damage vs aquatic, 10% water damage reduction. Situational but strong in water zones.
• Iron Talisman – 5% damage to all enemies. Reliable, but lower ceiling.
• Blood Amulet – 10% attack speed, but drains HP per hit. Risky but high DPS.
• Stone Heart – 20% damage reduction, but slows movement. Defensive choice.

For most players, the pendant is a niche pick. It shines in specific areas but is outclassed by the Blood Amulet for general boss fights.

Costs and Upgrades

The pendant itself is free – it comes from the boss chest. However, upgrading it requires 3,000 gold and 5 “Water Essence� materials, which drop from aquatic enemies. At the blacksmith, you can upgrade it to +3, which raises the damage bonus to 20% and the damage reduction to 15%. Each upgrade level costs more gold and essence, so plan your farming accordingly.

There is no alternative way to obtain the pendant – it is a unique drop from that specific boss. If you miss it, you would need to start a new game or wait for a possible New Game+ cycle.

Safety and Accuracy Notes

This information is based on the game’s current version as of the latest update. Game developers may patch item effects or locations in future updates. Always check the in-game item description for the most up-to-date numbers, as percentages can change with balance patches.

Do not confuse the pendant with the “Twin Fish Hook� which is a fishing rod attachment – they are entirely different items with different purposes.

Frequently Asked Questions

Can I get the twin fish pendant after beating the game?

Yes, you can return to the Kuiyun temple in the post-game. The boss will respawn if you haven’t defeated it in your current playthrough. If you already killed it and took the pendant, you cannot get a second one.

Does the pendant work on all bosses?

No, it only works on enemies that are classified as aquatic. Most humanoid bosses, like the Sword Saint, are not affected. Check the enemy’s lore entry – if it mentions water, the pendant will work.

Is the twin fish pendant worth using?

It depends on your build. If you are exploring water-heavy areas or farming aquatic materials, it is excellent. For general story progression, other trinkets provide more consistent value.

What is the difference between the twin fish pendant and the twin carp charm?

The pendant is a combat trinket that boosts damage against aquatic enemies. The charm is a fishing accessory that increases your chance of catching rare fish. They are not interchangeable.

Can I sell the pendant?

You can sell it to any merchant for 500 gold, but it is not recommended. The pendant is a unique item, and you cannot buy it back. If you sell it, you lose the damage bonus permanently for that playthrough.

Does the pendant stack with other damage boosts?

Yes, it stacks multiplicatively with other damage modifiers. For example, if you have a 10% damage boost from a skill and the pendant’s 15%, the total is 1.10 × 1.15 = 1.265, or a 26.5% increase, not 25%.

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in t | Time spent fishing (min) | min | 30 | 0
in c | Fish caught | count | 12 | 0
out rate | Catch rate (fish per hour) | fish/h | (c / t) * 60 | 1
out avg | Average time per fish | min/fish | t / c | 1