Persona 5 Royal How Fusion Works

TL;DR

No two Personas share the same base level and Arcana, so a combination of two can give you a specific Persona.

The level is the average of the base levels of the two Personas being combined, rounded up to the next highest number (average + 1 if the average is a whole number, average + .5 if it is a decimal).

The Arcana is fixed based on the two Arcana being combined, see the chart below.

The result will be the Persona of this level within this Arcana, or the next highest level Persona within this Arcana if there is none of that specific level.

Example: Arsene (Level 1 Fool) + Jack Frost (Level 11 Magician). Fool + Magician = Death. Average of levels + 1 = 7. Closest Death Persona at or above level 7 is Mokoi (Level 9), so Arsene + Jack Frost = Mokoi.

Fusing two of the same Arcana will result in a Persona of the same Arcana. If that Persona is the same as one of the two used in fusion, the result will instead be the next Persona down in that Arcana. If that is not possible the fusion will not be possible.

Fusing with a Treasure Demon yields a Persona 1 or 2 ranks higher or lower within that Persona's Arcana, depending on the combination of Treasure Demon and Arcana used (see the chart below). The fusion result is actually based on the Persona's current level instead of base level, so if you have an Arsene that should go up by 1 rank, ordinarily it would go up to Obariyon. However if that Arsene is level 8 or higher (Obariyon having a base level of 8), it would go up to High Pixie instead, being the next highest ranked Persona within Arsene's Arcana (Fool). Fusing two Treasure Demons follows the rules of a standard fusion as if they were normal Personas.

Skills are inherited based on a Persona's "Inheritance Type". This is a hidden stat that isn't exactly intuitive. You can find them online, such as in the fusion calculator link below.

(x = that inheritance type cannot inherit that skill)

Traits can be inherited without any restrictions (I think). Treasure Demons have 3 options to choose from instead of 1, the options are fixed per Demon.

Here's a helpful fusion calculator that lists all Personas along with their skills, Inheritance Types, and Weaknesses/Resistances.[aqiu384.github.io]

Please give thumbs up if you found this helpful! I really do appreciate it.

Introduction

Ever try and fuse two similar Personas hoping for another similar, slightly better Persona, only to end up getting an entirely different Persona 30 levels above you? Unlike what you may expect, Personas aren't fused based on any similarity in skills or resistances. While it may seem frustrating and at times random, there is actually a fairly simple, consistent formula that if understood could allow you to know the results of a fusion without needing to check in-game or any online tools.

Hopefully this guide helps make Normal Fusion a more approachable and enjoyable part of the game. After learning the mechanics you should be able to figure out how to fuse your desired Personas, whether it be for general gameplay or to complete the Strength confidant without having to rely on an online guide which may use Personas unavailable to you.

How It Works (Usually)

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How Fusion Works image 30

Each Persona has an Arcana and a base level. There are no two Personas that share the same base level and Arcana, so the combination of both can act as an identifier for a Persona. Normal Fusion then simply needs to combine the base level and Arcana of two Personas being fused into a matching pair and give the corresponding Persona as a result.

So we need a "formula" for each: One for the base level, and one for the Arcana.

A FEW THINGS TO TAKE NOTE OF Treasure Demons have their own unique rule set and fusion usage.

A Persona being fused cannot be the resulting Persona. In other words, you cannot fuse a Persona into itself. Instances in which this would happen have special rules, see below.

When I say "base level", I mean the level of a Persona without any level-ups or increased XP. This is the lowest level it can possibly be, as if you fused it without bonus XP, or just got it from a Palace/Mementos.

ArcanaEach pair of Arcana in fusion have a specific outcome Arcana. Arcana A and Arcana B will always give Arcana C, regardless of level. See the fusion chart for each pair.

Example: + = .

Persona 1 Persona 2 Result Thor (Level 64 ) Angel (Level 9 ) Girimehkala (Level 43 ) Ara Mitama (Level 30 ) Dominion (Level 68 ) Tsukiyomi (Level 50 ) Slime (Level 10 ) Principality (Level 29 ) Sui-Ki (Level 24 )

No matter what level or specific Personas used, a and a will always give a . Lovers and Fool will always give , Fortune and Empress will always give Hermit, etc.

Now that we know the Arcana, we just need to know the base level, at which point we'll have both the identifiers we need to find the correct Persona.

LevelThe base level of the outcome Persona will be the average of the base levels of the two Personas being fused, rounded up to the next highest number, meaning if the resulting average is a whole number it will be increased by 1, and if it is a decimal it will be increased by 0.5.

Base Level of Outcome Persona = [(Base Level of Persona 1 + Base Level of Persona 2) / 2] + 0.5 or 1

If there is a Persona of the matching Arcana at this level, that will be the result. If not, the result will be the next Persona up within the same Arcana, in other words the closest higher level Persona within the Arcana.

Examples: Arsene (Level 1 Fool) + Suzaku (Level 16 Sun).

A fusion of Fool and Sun would yield .

We need a level 9 Persona:

1 (Arsene) + 16 (Suzaku) = 17

17 / 2 = 8.5

8.5 is a decimal so we add 0.5 to bring it up to the next highest number.

8.5 + 0.5 = 9

We need a Level 9 .

Angel is a Level 9 , and would be our result. Nigi Mitama (Level 22 Councillor) + Slime (Level 10 ).

A Fusion of Councillor and would yield Sun.

We need a level 17 Persona:

22 (Nigi Mitama) + 10 (Slime) = 32

32 / 2 = 16

16 is a whole number so we add 1 to bring it up to the next highest number.

16 + 1 = 17

We need a level 17 Sun Persona.

Problem: There is no level 17 Sun Persona! The closest are Suzaku at Level 16 or Thunderbird at Level 34.

Even though Suzaku is much closer to our level calculation, we go upwards, so we get the next highest Sun Persona after level 17.

Thunderbird is the next highest Sun Persona at level 34, and would be our result.

Treasure Demons

Treasure Demons have unique rules for fusion, three in particular:

1) Fusing with a Treasure Demon yields a Persona 1 or 2 ranks higher or lower within that Persona's Arcana. "Rank" in this case means a Persona's position in its Arcana by base level, e.g. for the Fool Arcana Arsene would be Rank 1, Obariyon Rank 2, High Pixie Rank 3, etc. Whether a Persona goes up or down and by how many ranks depends on the specific combination of Treasure Demon and Arcana used (see the chart).

2) The fusion result is actually based on the Persona's current level, not its base level. When considering what counts as the next or second next highest or lowest Persona within an Arcana (i.e. 1 or 2 ranks up or down), you consider it from the Persona being fused's current level instead of base level.

As an example, if you fused Arsene with Queen's Necklace which is +1 rank for the Fool Arcana (meaning it fuses Fool Personas into the next highest Fool Persona):

For a Level 1-7 Arsene, the next highest Fool Persona would be Obariyon, having a base level of 8. Thus fusion would yield Obariyon.

For a Level 8-15 Arsene, Obariyon is no longer a higher level. The next highest level Fool Persona is High Pixie with a base level of 16. Thus fusion would yield High Pixie.

Level 1 Arsene + Queen's Necklace = Obariyon. Level 8 Arsene + Queen's Necklace = High Pixie.

(Chart for Treasure Demon fusion. The number indicates the rank change.)

3) Treasure Demons have 3 traits that can be chosen from during fusion. You can still only choose one trait, but the pool of traits to choose from would be 5 instead of the usual 3.

(Treasure Demon Traits)

Fusing two Treasure DemonsIt is possible to fuse two Treasure Demons together, in which case they follow the standard fusion rules. Match the Arcana, average of base levels + 1, then find the corresponding Persona.

Special Cases

The rules above will not always work, so there are some special cases to take note of.

Highest Level PersonasIf you fuse two Personas but end up with a level higher than that Arcana's highest level Persona, the result will instead be the highest level Persona of that Arcana. However if that Persona is a Confidant Persona and you haven't maxed that Confidant yet:

Trying to fuse a Confidant Persona without having maxed that ConfidantYou will simply end up fusing the next Persona down within that Arcana.

Fusing two Personas of the same ArcanaYou can fuse two Personas of the same Arcana and the result will always be another Persona of that same Arcana. This is the only way you could end up with the outcome Persona being the same as one of the Personas being fused, but this isn't allowed. Instead, the outcome would be the next lowest Persona within that Arcana. If there are no lower level Personas in that Arcana, the fusion will simply not be possible.

Examples:

Arsene (Level 1 Fool) + High Pixie (Level 16 Fool). Formula would normally give a Level 9 Fool which would move up to the next highest Fool: High Pixie. But since we used High Pixie in the fusion, that isn't allowed, so instead it goes down to the next lowest Fool, Obariyon, at level 8.

Arsene (Level 1 Fool) + Obariyon (Level 8 Fool). Similar to above, but this time we'd end up with Obariyon. Since that's not allowed we'd go to the next lowest, but the only lower Fool is Arsene, which also isn't allowed. Thus this fusion simply isn't possible.

Skill / Trait Inheritance

(Note: Whereas the rest of this guide is information taken from a handful of sources and put into my own words, this part is pretty much ripped straight from the wiki. Thanks wiki!)

How many skills can be inherited?The number of skills a Persona can inherit is dependent on the total number of skills possessed by the Personas being fused. This is how many skills you can choose and end up having on your Persona, not the total pool of skills you can choose from.

The "Number of Parent Skills" here is the total number of skills held by the Personas being fused, regardless of whether or not those skills can be inherited. Whether you can inherit all of them or none of them, if a Persona has 8 skills it will count as 8 skills when deciding how many skills can be inherited.

Number of Parent Skills Number of Inherited Skills 3-5 1 6-8 2 9-12 3 13-23 4 24-31 5 32-41 6 42 8 (Another note: Normal Fusion can only get up to 4 inherited skills, since 8 from each parent puts you in the 13-23 range).

What skills can be inherited?The more interesting section :)

Each Persona has an "Inheritance Type" that determines what skills it can inherit. A Persona's inheritance type might roughly line up with its skills, weaknesses, and resistances, but this is by no means a rule and shouldn't be expected.

As an example: Hua Po, Inugami, and Orobas are all of the "Fire" Inheritance Type, but have different skills and resistances. Hua Po seems like the most traditional "Fire" type, having access to Fire skills whlie repelling Fire and being weak to Ice. Orobas is also weak to Ice and has Fire skills, but has no Fire resistance. Then you get Inugami who nullifies Fire, but doesn't care about Ice and has no Fire skills whatsoever, while still being a "Fire" Inheritance Type. And while yes, it does nullify Fire, it also nullifies Gun and Curse. In fact, its only built in offensive skills are physical, which to me seems like it should be a "Physical" Inheritance Type, but no, it's Fire.

These Inheritance Types are not shown in game. Given they won't be particularly obvious either, you'll have to experiment or look them up.

Also, some Personas have signature skills that are unique to them and cannot be passed on to any other Personas, such as our beloved Hassou Tobi.

Here is the Inheritance Type chart, taken from the wiki.

(x = that inheritance type cannot inherit that skill)

Looking at the chart you'll see a few interesting things.

Gun skills are missing from the chart as they are lumped in with Physical Skills when it comes to inheritance.

The "Almighty" Inheritance Type can inherit any non-signature skill.

Some skills can be inherited regardless of Inheritance Type:

Support skills, such as -kaja/-kunda skills or Elemental Walls/Breaks (NOT healing skills!).

Almighty skills.

Passive skills, such as Elemental Amp/Boosts or Resistances.

TraitsAs far as I know, there are no restrictions to inheriting traits. Any Persona can inherit any trait from the Personas being fused. Treasure Demons have 3 traits that can be chosen from during fusion. You can still only choose one trait, but the pool of traits to choose from would be 5 instead of the usual 3.

(Treasure Demon Traits)

End

Thanks for reading this probably overly-long guide. First guide I've ever written and I enjoy seeing the visitor and favorite numbers go up, so thank you. Maybe this stuff was obvious to most people and I'm just pointlessly overexplaining it but this is my 6th time through a (post-2) Persona game and I only just now cared to look up how this stuff works...

I pulled all this stuff from a few places online and some of it may very well be incorrect. I haven't had the chance to check everything myself in-game. Please let me know of anything that's wrong and I'll try to fix it. Same with any grammar mistakes and whatnot.

In case you don't feel like doing the math on fusions, or you want some extra info on all the Personas, including their affinities and skill lists, here is a helpful fusion calculator.[aqiu384.github.io]

Have fun, and remember to take your time!

"Once, I dreamt I was a butterfly. I forgot myself and knew only my happiness as a butterfly. Soon, I awoke, and I was myself again. Now I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly, dreaming I am a man."

Source: https://steamcommunity.com/sharedfiles/filedetails/?id=2880182811

How Fusion Works