Passive Skill Transfer — Breeding vs Yakumo

Palworld 1.0 (v1.100.427)

The one rule that decides everything:
🧬 Breeding can pass anything a parent carries — including every exclusive.
🦉 Yakumo (Birds of a Feather) can only pass passives that spawn randomly on any wild pal. All exclusives are blocked.

Master Transfer Matrix

Passive / Group	Effect (1.0 values)	🧬 Breeding	🦉 Yakumo	Source of passive
Tier 4 Lucky	Atk +15% · Def +15% · Work +20%	YES	NO	Lucky (shiny) wild spawns only
Tier 4 Legend	Atk +20% · Def +20% · Move +20%	YES	NO	Legendary pals only (Jetragon, Frostallion ±Noct, Necromus, Paladius, Neptilius)
Tier 4 Elemental Lords / Emperors Divine Dragon, Lord of the Underworld, Flame Emperor, Ice Emperor, etc.	+30% damage of that element	YES	NO	Their carrier pals (Jetragon, Necromus, Blazamut, Frostallion…)
Tier 4 Signature duals Invader · Siren of the Void · Eternal Flame	+30% / +30% two elements	YES	NO	Xenolord · Bellanoir Libero · Blazamut Ryu
RAINBOW Mutation passives Immortality, Idiosyncratic, Skymarcher, Babysitter, Heavily Armored	See rainbow table below	YES	NO	Mutated eggs only
World Tree Demon's Hand, God of Destruction, Hermit Sage, Dimensional Leap, World Tree Seedbed…	Huge bonus + a drawback (e.g. Work +90% / SAN +15% drain)	UNKNOWN	NO (confirmed)	World Tree pals
Tier 4 Demon God	Atk +30% · Def +5%	YES	YES	Random pool
Tier 4 Remarkable Craftsmanship	Work +75%	YES	Likely — verify	Random/Lucky pool
Tier ≤3 All common passives Artisan, Musclehead, Ferocious, Serious, Work Slave, Swift, Runner, Brave, Diamond Body, Burly Body, hunger/SAN passives…	e.g. Artisan Work +50% · Musclehead Atk +30%/Work −50% · Ferocious Atk +20%	YES	YES	Random pool

Rainbow Passives (mutation-only) — all breedable, none via Yakumo

Passive	Effect	Best use
Immortality	Atk +15% · Life Steal 5% · Regen +100%	Top combat sustain pick
Idiosyncratic	Def +25% · Player+Pal Regen +50% · Immune Poison/Burn	Tank / boss fights
Skymarcher	Mounted jump +2	Mounts / traversal
Babysitter	Egg production +30% · Incubation +30%	Breeding-farm pals
Heavily Armored	Immune to explosion damage	Niche defense

Commonly mislabeled as rainbow (they are regular passives per the game files): Lavish Hospitality (dropped items +100%), Ranch Master (Farming +2), and Serenity (CDR −30%, Atk +10%). All three roll normally and breed normally.

Hatch list showing a mutated Aegidron whose passives include Immortality and Lavish Hospitality — A mutated hatch from our save: Immortality (rainbow) rolled alongside Lavish Hospitality, plus Lord of the Underworld and Ferocious inherited from its Frostallion Noct parents — mutants mix rainbow rolls with inherited passives.

Side by side

🧬 Breeding — the full pipeline

Passes everything a parent carries: Lucky, Legend, Lords/Emperors, signatures, rainbows, commons.
Not guaranteed per egg: a given passive inherits ~46% of the time; ~33% of eggs inherit nothing.
Special Cake boosts multi-passive inheritance — it can push the full 4-passive roll.
Keep parents' combined desired passives at exactly your 4 targets (2/2, 1/3, or 4/0).
The only way to stack Lucky + Legend + rainbow on one pal.

🦉 Yakumo — the capture shortcut

In-game text: "While fighting together, 15% increased chance of encountering pals with the same Passive Skill as this Pal. (Excludes certain Passive Skills)" — 15% at partner-skill Lv.1, rising with rank.
So it boosts the odds that wild pals you encounter carry Yakumo's passives — bring it while hunting carriers.
"Excludes certain Passive Skills" = the exclusives: Lucky · Legend · Lords/Emperors · signatures · World Tree · rainbow.
A detail not in the tooltip: the effect fills the wild pal's natural passive slots — one that already rolled 4 gains nothing.

Yakumo stat screen showing the Birds of a Feather partner skill text — Birds of a Feather, straight from the game: +15% chance (at Lv.1) that encountered pals share Yakumo's passives — with the exclusion clause right in the tooltip.

Practical build flow

🦉 Yakumo carries your 1–2 common passives
(Demon God, Musclehead, Artisan…)

→

Catch carriers pre-loaded with those passives

→

🧬 Add exclusives via breeding line
(Legend from legendary, Lucky from shiny, rainbow from mutant)

→

🍰 Special Cakes until the child has all 4

→

Condense → Souls → Awaken → Lv.80

Tip: run Yakumo with only 1–2 target passives, not 4. Each empty slot rolls separately — the chance of transferring all 4 at once is under 1% in practice, so a focused Yakumo produces far more usable carriers per hour.