Question 1

How many rainbow passives are there, and where do they come from?

Accepted Answer

24 in the 1.0 data, split four ways: 12 wild-random, 1 rare-individual, 5 mutation-only, 6 pal-exclusive. The 1.0 passive data table sorts rainbow (rank 4) passives into four source pools: the wild-random pool (rollable on wild Pals and from breeding, 12 entries including Remarkable Craftsmanship, Swift, Demon God and Ranch Master), the rare-individual pool (Lucky alone, exclusive to shiny individuals), the mutation-only pool (carried by mutated eggs only, 5 entries including Immortality, Idiosyncratic and Babysitter) and the pal-exclusive pool (6 entries: Eternal Flame, Invader, Legend, Lunker, Savior and Siren of the Void). The classification dictates strategy: farm the wild-random pool by volume (fishing and wild catches both hit it), the mutation pool only through mutated eggs, while the pal-exclusive pool is in no random pool at all — no amount of wild farming will produce it.

Question 2

How do I get exclusive passives like Siren of the Void or Lord of the Underworld?

Accepted Answer

Secure the Pal that innately carries it first, then walk the passive to your target species by breeding. Pal-exclusive passives are signature traits: Siren of the Void only appears on the raid boss Bellanoir Libero (every captured one carries it), Lord of the Underworld on Necromus and Frostallion Noct (since 1.0 Frostallion Noct spawns fixed in Sanctuary No.3, far easier than before), and Lunker comes from fishing. To put these on an ordinary Pal, catch the carrier first, then walk the passive down the breeding chain to your target — passive inheritance itself crosses species freely.

Question 3

Why can't Pals like Shadowbeak receive exclusive passives?

Accepted Answer

26 Pals in 1.0 can only be produced by same-species pairs, so no outside parent — and no outside passive — can enter the line. The site's breeding data flags 26 Pals as self-breed-only: they hatch solely from a same-species male-female pair, and all nine tower-boss partner Pals are on that list (Grizzbolt, Lyleen, Orserk, Faleris, Shadowbeak, Selyne, Bastigor, Shaolong, Astralym). Their parents are always two of their own kind, so there is no channel to import an outside passive. Pal-exclusive passives are also absent from the wild-random pool, so catching more wild ones will not roll them either — the breeding route genuinely dead-ends here. That is not the end of it, though: disposable implants cover all six pal-exclusive passives and can be applied directly at the Surgery Table. See the next question. This is distinct from the non-formula-breedable set (41 Pals flagged ignoreCombi): ignoreCombi means outside the formula pool, while self-breed-only constrains the child side to same-species parents. The two lists do not fully overlap — trust the calculator output when checking a specific Pal.

Question 4

Can the Surgery Table implant rainbow passives?

Accepted Answer

Yes: disposable implants cover 21 of the 24 rainbow passives, pal-exclusives like Siren of the Void and Legend included. The 1.0 Surgery Table adds passives to a Pal directly using implants, and implants come in two families: ordinary implants, and the disposable implants the official notes describe as consumed on use but granting stronger passives. Matching the site's disposable-implant list against the 24 rainbow passives one by one, 21 have a corresponding item — including all six pal-exclusives (Eternal Flame, Invader, Legend, Lunker, Savior, Siren of the Void) and all five mutation-only traits (Babysitter, Heavily Armored, Immortality, Idiosyncratic, Skymarcher). Only three have no disposable implant, and all three sit in the wild-random pool: Lightfooted, Lavish Hospitality and Ranch Master. Those still have to come from catching or breeding. That does not make implants a replacement for breeding. A disposable implant is gone after one use, and the site's data layer has no structured source for how you obtain them in the first place — whether you can get them reliably is a separate question. For outfitting a whole team, breeding remains the controllable route; implants are best spent closing the last gap or two.

Question 5

How should I set up parents for passive selection?

Accepted Answer

Trim the parents' combined passive pool down to exactly the four you want, then run it with Special Cake. Inheritance draws randomly from the union of both parents' passives, so the larger that union, the harder it is to land your exact four. In practice, first breed two parents whose passives add up to exactly the four you want with nothing extra, then finish with Special Cake (which raises multi-passive inheritance). A union of five or more is you adding junk cards to your own deck. Chasing mutation-only traits is the opposite case — use Deluxe Vegetable Cake for the mutation rate during that stage.

Question 6

Yakumo boosts encounters of Pals sharing its passives — which passives does that not cover?

Accepted Answer

The official text says "excludes certain Passive Skills." By the site's source-pool split, the 6 fixed and 5 mutation entries never roll on wild Pals, so farming for them is out; what encounter rate actually helps with is the 12 in the wild random pool. Get the mechanic right first. Yakumo's partner skill, Birds of a Feather, reads: while fighting alongside it, the chance of encountering Pals with the same passive as this Pal increases by 15–30% — and the official text itself appends "excludes certain Passive Skills." What it raises is the wild encounter rate. It is not breeding inheritance and it does not copy a passive onto another Pal. Whether a passive benefits therefore comes down to whether it can roll on a wild Pal at all. The site maps all 24 rainbow passives onto the three random-pool boolean fields in the data table, giving four classes: wild (the wild/breeding random pool), rare (the rare-individual pool), mutation (the mutation-egg pool), and fixed (all three flags false — the passive only sits on specific Pals by configuration). The examples you raised land in different classes: Demon God and Eternal Engine are wild, Lucky is rare, Legend and Siren of the Void are fixed. Nothing in the data table puts the fixed class into any random pool — a wild Pal will not roll Legend or Siren of the Void on its own, so farming the wild hoping to bump into one is not a plan. One caveat: the fixed holders themselves are encounterable in the world (the who has them entry on this same page lists raid summons, fixed spawns and fishing), and whether Yakumo's bonus applies to those non-random spawns has no verifiable data here. The same logic rules out the five mutation entries (Babysitter, Heavily Armored, Immortality, Idiosyncratic, Skymarcher): they come out of mutation eggs and never travel the wild-encounter route. What is actually worth farming with Yakumo is the wild dozen: Remarkable Craftsmanship, Diamond Body, Swift, Demon God, Mastery of Fasting, Heart of the Immovable King, Lightfooted, Lavish Hospitality, Eternal Engine, King of the Waves, Vampiric, and Ranch Master. One caveat: the official text only says "certain" passives are excluded and never publishes the list, so the mapping above is inferred from the data table's pool flags. The direction is sound but it is not official wording — before committing a long farming session to one passive, sanity-check it on a small sample yourself.

Rainbow Passive Sources FAQ

Questions in this guide