Empyrean Blox Fruits: Kitsune Mutation

Empyrean is the Mythical mutation of Kitsune, added in Update 29.1. It is a Beast type fruit with M1s, and its moveset copies Kitsune's with three clear differences: the M1s, the [Z] and the transformed [C]. At 3 tails, the first three M1s gain a lot of reach, much like Dragon's M1s, while the fourth trades part of its damage for a wide pull that gathers nearby enemies. Out of transformation, [Z] fires a beam toward your cursor that can be held for enormous damage; transformed, it changes animation, and the held version of [C] triggers a cinematic unique to the mutation. Nearly every move hits in an area: together with the M1s, that makes it one of the best fruits in the game for grinding. Two catches: the Mastery requirements are heavy for a low level, and physical copies are so rare that getting one for free is close to impossible.

How to get it

Rolled from the Winter 2025 Fruit Box, a limited time box that also gives the Galaxy skin. That box can itself drop as a Premium Box from the Winter Gacha.
Bought directly for 2,000 Robux in the Kitsune fruit's mutation section. You need a Permanent Kitsune first.
Bought through the Fox Spirit Bundle during the Christmas Event 2025.
Trade: Empyrean is traded as a special item.

Moveset

Key	Move	Description
`M1`	Normal Attack	Red flame slashes shoot forward; the 4th hit groups enemies from a large area into one point (heavily reduced damage) and the last one varies on ground or in air. At 3 tails, hits burn over time; all 5 M1s consume 7.5% of the tail gauge.
`Z`	Sweeping Firestorm Mas. 1	Pressed: a short red fire beam deals light damage. Held: a ring of red letters like Fox Lamp appears before a high-damage beam, with the beam and explosion each dealing damage separately; the attack aims but remains slow.
`X`	Tails of Burning Agony Mas. 50	Zigzag strike that hits two angles before reaching the target and stunning for about 0.65 s. One variant grabs the enemy in the air to slam them down, the other hits them on the ground to launch them up. Consumes 12.5% of the tail gauge.
`C`	Burstfire Cannon Mas. 100	Summons a light red fireball launched on key release: huge explosion on impact, with lingering flames near the ground. Breaks Instinct and deals slightly more damage on direct hit. Consumes 15% of the tail gauge.
`V`	Transformation Mas. 300	Transformation into full Kitsune form. During the transformation, you avoid all basic damage for one second; the move consumes a total of 30% of the visible tail gauge.
`F`	Wild Assault Mas. 200	Dash forward: if an enemy is hit, they suffer a barrage of claw strikes between True Triple Katana's Z, Rengoku's Z, and Kitsune's M1s. Consumes 10% of the tail gauge.

Transformé

Key	Move	Description
`M1`	Normal Attack	Identical to untransformed M1s at 3 tails, with area of effect, hitbox and slightly higher damage. All 5 hits consume 7.5% of the visible tail gauge.
`Z`	Sweeping Firestorm Mas. 1	Summons three red fireballs then dashes forward. If the target is hit, you pivot behind them and fire a fireball that explodes with damage over time; otherwise, a barrage of fireballs erupts around you in a wide area. Consumes 15% of the gauge.
`X`	Tails of Burning Agony Mas. 50	Zigzag dash: grabbed target is carried into the air then violently slammed to the ground, breaking Instinct and spawning red flames and giant tails (with a Kitsune face imprinted on the ground). In the air, the slam is immediate; 20% of the gauge.
`C`	Burstfire Cannon Mas. 100	Pressed: a red fireball strikes in a wide area and leaves high-damage flames over time (25% of the gauge). Held: a quick dash triggers a cinematic on contact where you fire a huge energy ball at close range (75% of the gauge).
`V`	Transformation Mas. 300	Instant return to human form, which restores access to combat styles, swords, and guns.
`F`	Wild Assault Mas. 200	Dash to enemy followed by a tail sweep, in the spirit of True Triple Katana's Z, Rengoku's Z, and Kitsune's M1s. Consumes 15% of the visible tail gauge.

The tail passive

Passive	What it does
Swift Tails	The tail gauge fills on its own and when you deal damage. At 3 tails the gauge turns rainbow and the transformation unlocks. Missing an attack drains the gauge, M1s included, though M1s cost less than other moves.
Transformed Energy	Once transformed, a third of the gauge drains slowly, and it also drops whenever you take damage, lava and water included. While transformed you no longer regain gauge passively: only your damage refills it, Kitsune's damage over time included.
2 tails	+100% speed, improved dash, and you run on all fours. Air jumps, dashes and walking each get their own animation.
3 tails	Three glowing orbs spin around you. [F] and your M1s then leave red flames that burn the target: 3 seconds, one damage tick per second. The 4th M1 changes slightly in appearance, and the first three gain noticeable reach in the form of three flaming slashes thrown forward, exclusive to Empyrean.
Heavenly Fox Fur	While transformed: 20% damage reduction from every source, improved attacks, reduced cooldowns, higher speed, a jump twice as high as average and a longer dash.
Tread of the Highest Heaven	While transformed, you run on water. You cannot stand still on it, though.
Empyrean Mount	While transformed, an allied player can ride you thanks to your saddle.

Worth noting: the source contradicts itself on damage at 3 tails. The passive entry states that this tier does not raise your damage at all, the M1 description says the opposite and claims base damage goes up, and the trivia section states that Empyrean's M1s hit noticeably softer at 3 tails, offset by their reach. You get all three versions rather than one picked at random.

Cooldowns and energy

Key	Move	Cooldown in base form	Cooldown transformed	Energy
[M1]	Normal Attack	0.5 s	0.5 s	not listed
[Z]	Sweeping Firestorm	9 s	6.75 s	20
[X]	Tails of Burning Agony	12 s	9 s	40
[C]	Burstfire Cannon	15 s	11.25 s	80
[V]	Transformation	2 s	3 s	20
[F]	Wild Assault	9 s	6.75 s	60

The source adds one detail that does not quite match its own table: according to it, [V] goes on a 2 second cooldown after transforming, and a 3 second one after returning to human form.

Instinct: what breaks, what gets dodged

In base form

Key	Move	Breaks Instinct	Dodgeable with Instinct	Detail
Passive	3 tails	Yes	No	Requires a full gauge. Triggers on its own if you grab with [M1] or [F].
[M1]	Normal Attack	No	Yes	Never breaks Instinct in any way.
[Z]	Sweeping Firestorm	Yes	No	Tapped or held, it always breaks Instinct.
[X]	Tails of Burning Agony	No	Yes	Does not break Instinct, but eats a lot of it in a kentrick situation.
[C]	Burstfire Cannon	Yes	Yes	The first hit and the flames break Instinct if you are caught in them. The explosion itself can be dodged.
[V]	Transformation	Yes	Yes	Dodgeable on the edge during the animation. The small explosion can break Instinct.
[F]	Wild Assault	Yes	Yes	Only breaks Instinct if the grab lands. The first hit can be dodged.

Transformed

Key	Move	Breaks Instinct	Dodgeable with Instinct	Detail
Passive	3 tails	Yes	No	Only works if you grab with [M1] or [F].
[M1]	Normal Attack	No	Yes	Never breaks Instinct.
[Z]	Sweeping Firestorm	Yes	Yes	On a hit, the small throw damage can be dodged but the explosion breaks Instinct. On a miss, the edge can sometimes be dodged.
[X]	Tails of Burning Agony	Yes	Yes	Only the slam breaks Instinct. The initial grab and the flames can be dodged if you miss.
[C]	Burstfire Cannon	Yes	No	Breaks Instinct on a hit. The cinematic freezes attacker and target alike.
[V]	Transformation	Not applicable	Not applicable	Deals no damage.
[F]	Wild Assault	Yes	Yes	Only the slashes break Instinct. The initial grab and the flames can be dodged if you miss.

These tables predate Update 29.2: since that patch, a tapped [Z] no longer breaks Instinct, even though the same page keeps claiming otherwise above. See the balance history just below.

Balance history

Update 29.1 - release

Empyrean is published, along with the Galaxy skin.
Immediate rebalance: the transformed [Z] Sweeping Firestorm gains endlag (nerf), and the transformed [C] Burstfire Cannon gets a projectile version on tap, identical to Kitsune's (neutral change).

Christmas Event 2025, day 6 - silent change

The transformed [C] gains the projectile option on tap, identical to regular Kitsune but in red flames.
The transformed [Z] is nerfed: it temporarily stops you from using any move while it plays out.

Update 29.2 - heavy nerf

A tapped [Z] no longer breaks Instinct.
Held [Z] damage drops by 30%.
[X] now channels on impact: you can no longer start another ability before the animation ends.
[C] endlag goes up by 0.3 seconds.

Known bugs

While transformed, Empyrean has a larger hitbox than regular Kitsune on some servers.
While transformed, approaching the large ships during a Ship Raid or a Haunted Ship Raid makes them teleport backwards at the same speed you move forward.

Good to know

The word "Empyrean" comes from Greek (en - pyr) and means "in the fire".
It is the first mutation in the game to have its own skin; the second is Fiend, with the Runic skin from the Summer 2026 Chromatic Box (Update 30).
On paper it is a mutation, but in game it outclasses Kitsune on nearly every point.
Empyrean Kitsune has 9 tails, regular Kitsune only 5.
Lagging players are easier to hit with [Z]: their hitbox trails behind and barely moves.
Unlike Kitsune, whose first three M1s grab and stun, Empyrean's push the enemy forward like Dragon's M1s from 3 tails or while transformed.
The held transformed [C] does not refill the tail gauge, even though it is the most destructive transformed move.
The source reports that the damage of the untransformed [Z] is bugged, confirmed according to it by Admin E, and that the bug had lasted over 5 months. Careful, it calls that move "Burstfire Cannon" at that spot, while [Z] is named Sweeping Firestorm and Burstfire Cannon is [C]: that is a mix-up on the page, not another move.

Strengths and weaknesses

Huge trade value (available for a very short period)
Excellent movement speed from 2 tails onward
High damage, large areas and great M1 range: very good for farming
Can break Instinct (passive and damage over time at 3 tails)

All attacks consume the tail gauge
Demanding Mastery, separate from normal Kitsune
Only one movement ability outside of transformation
The extra range exposes you to counters from fruits like Tiger, Dragon, or Lightning

Our take

Empyrean is a mutation that outclasses the fruit it comes from: bounty hunting, farming in all three seas, it does almost everything very well. The price to pay is heavy Mastery requirements, a tail gauge to watch at all times, and a rarity that makes it nearly out of reach without the shop or a trade. Keep in mind as well that it was heavily nerfed in Update 29.2.

Update history

Item : Empyrean·Released : Update 29.1

Update 30 3 octobre 2026 Adjustment
- Overview: on 2 October 2026 the source removed its two opinion sentences ("broken" in PvP, grinding compared to Buddha). The page keeps what is still verifiable: area hits, long-reach M1s, one of the best fruits for grinding, Mastery requirements and rarity.
See update 30
Update 30 17 septembre 2026 Adjustment
- Trivia: Fiend became the second mutation with a skin (Runic, Update 30), Empyrean remains the first.
See update 30
Update 29.2 14 février 2026 Adjustment
- Empyrean was severely nerfed.
- [Z] (TAP) No longer breaks instinct.
- [Z] (HOLD)'s damage was decreased by 30%.
- [X] Now channels on hit; the user cannot cast another ability before the animation completes.
- [C] End-lag increased by 0.3 seconds.
See update 29.2
Update 29.1 25 décembre 2025 Release
- Empyrean was released.
- Added Galaxy skin.
- Empyrean was rebalanced.
- Transformed [Z] Sweeping Firestorm now has endlag.
- Transformed [C] Burstfire Cannon now has a projectile variant (identical to to Kitsune) when tapped.
See update 29.1