Wavebreaker’s Fin is a 4-Star Polearm that was introduced as part of the Watatsumi series of weapons in Version 2.2 on the Eptiome Invocation event. Wavebreaker’s Fin has a %ATK substat, and a unique passive that powers up the damage of Elemental Bursts based on the energy cost of the user’s entire party. This makes it an attractive choice for characters with high burst costs.
About Wavebreaker’s Fin
| Rarity | ⭐⭐⭐⭐ |
| Weapon Type | Polearm |
| Secondary Stat | ATK% |
| Refinement Passive | Watatsumi Wavewalker |
| Region | Inazuma |
| Series | Watatsumi Series |
How to get Wavebreaker’s Fin in Genshin Impact?
Wavebreaker’s Fin is an event exclusive 4 Star weapon. This means that the only way to obtain this weapon is by wishing on a banner which features this weapon. Unlike 5-star event exclusives, there is no true way to guarantee rolling it other than good luck and ample resources.
Upgrades
Ascension and Stats
| Ascension Phase | Level | Base ATK | 2nd Stat (ATK) |
| 0✦ | 1/20 | 45 | 3.00% |
| 20/20 | 128 | 5.30% | |
| 1✦ | 20/40 | 154 | 5.30% |
| 40/40 | 247 | 7.70% | |
| 2✦ | 40/50 | 273 | 7.70% |
| 50/50 | 321 | 8.90% | |
| 3✦ | 50/60 | 347 | 8.90% |
| 60/60 | 395 | 10.10% | |
| 4✦ | 60/70 | 421 | 10.10% |
| 70/70 | 470 | 11.30% | |
| 5✦ | 70/80 | 496 | 11.30% |
| 80/80 | 545 | 12.50% | |
| 6✦ | 80/90 | 571 | 12.50% |
| 90/90 | 620 | 13.80% |
Ascension Materials
| Items Required | Amount |
| Weapon Ascension Materials | |
| Mask of the Wicked Lieutenant | 3 |
| Mask of the Tiger’s Bite | 9 |
| Mask of the One-Horned | 9 |
| Mask of the Kijin | 4 |
| Common Ascension Materials | |
| Concealed Claw | 15 |
| Concealed Unguis | 18 |
| Concealed Talon | 27 |
| Old Handguard | 10 |
| Kageuchi Handguard | 15 |
| Famed Handguard | 18 |
| Total Mora | 150000 |
Refinements
| Refinement | Effects |
| 1 | For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.12%. A maximum of 40% increased Elemental Burst DMG can be achieved this way. |
| 2 | For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.15%. A maximum of 50% increased Elemental Burst DMG can be achieved this way. |
| 3 | For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.18%. A maximum of 60% increased Elemental Burst DMG can be achieved this way. |
| 4 | For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.21%. A maximum of 70% increased Elemental Burst DMG can be achieved this way. |
| 5 | For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.24%. A maximum of 80% increased Elemental Burst DMG can be achieved this way. |
Availability
| Method | Obtainability |
| Paimon’s Bargains | No |
| Crafting | No |
| Overworld | No |
| Events | No |
| Epitome Invocation | Only if featured |
| Wanderlust Invocation | No |
| Character Event Wish | No |
Appearance
Each weapon has two forms, one when it is initially summoned and another once it has reached a certain level of ascension. Once this occurs, the weapon will undergo a change in its design. Wavebreaker’s Fin is a silver and blue polearm with a single edged blade
Non-Ascended
Wavebreaker’s Fin has a long purple shaft that turns a darker shade near its top and bottom.
Ascended
The color of its shaft becomes a lighter shade of purple, and the blue upon its bladehead begins to shine like the stars reflections off of the ocean
Story
The naginata of "Umigozen," the mighty warrior of Watatsumi. Its edge flows with the phosphorescence of the depths.
The way this person once made the navies of Narukami quail are well-recorded in the island's music.
The whalesong that the twin Watatsumi shrine maidens once sang followed the tide's flow into the dreams of the island's people.
All of Watatsumi's warriors pinned their hopes and will to fight upon their shoulders.
And they brandished their nagamaki like a white, flowing wave, and with a loud shout advanced upon the other islands.
Yet the glory of Omikami and that of his warriors were dimmed by the lightning's glow...
Mouun was consumed by a dark storm of crow feathers, and the great whale who sang with the sisters sank to the bottom of the sea.
The vassal ruler, determined as a child, the vanguard of their forces, vanished into a rift rent into the very earth itself.
"Umigozen" was lost to the waves, becoming a myth to the archipelago at large.
Some say that she dove alone into the press of tengu warriors to reclaim the bodies of her comrades, and was lost after a valiant last stand.
Others say that she hid thenceforth, steering her flagship into the Dark Sea at the borders of the world...
The only proof that she once sought to change the tides of the world is this still-sharp naginata.
As long as the seas are yet disturbed by the waves, so too might the memory of her song live on.
Legend even has it that the song yet echoes within seashells and the bellies of mighty whales at the bottom of the sea.
Trivia
-Wavebreaker’s Fin holds the highest base ATK of any of the 4-Star Polearms with 45 at level 1 and 620 at level 90
FAQs
Is Wavebreaker’s Fin good?
Wavebreaker’s Fin is a situational weapon that demands you be conscientious about how you build your team compositions as well as the type of character holding the weapon. A character needs to have a high damage output burst, as well as a team with a high average burst cost. Unfortunately this makes it rather niche.
How does Wavebreaker’s Fin work?
For every point of the entire party's combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.12%. A maximum of 40% increased Elemental Burst DMG can be achieved this way.The maximum Elemental Burst capacity needed to max out its passive is 333.3 repeating energy.
Who are good users of Wavebreaker’s Fin ?
It is a solid potential choice for the Raiden Shogun, especially since she will typically be paired with other high energy cost characters in her ideal team compositions anyway due to the nature of how her Elemental Skill/Burst work. Having another powerful modifier makes her Burst’s damage even more formidable. Xiangling is also another solid candidate.
Final Thoughts
Wavebreaker’s Fin is both niche in its optimal use cases as well as having poor availability due to being a unique weapon only available on the Epitome Invocation banner. If the conditions are perfect, it can be competitive with its other 4-star peers in heavy burst centric compositions. It is a relatively high bar to meet, however.
