Yes. In Palworld v1.0.3, Xenolord can get Otherworldly Cells through currently verified methods: it is a fixed passive. Otherworldly Cells is a fixed passive on Xenolord in v1.0.3; every Xenolord has it. The facts behind this answer are graded B and come from 2 registered sources.
Reason
Attack +10%; Element Boost Electric +15%; Element Resist Fire +15%
Rank
1
Random pool
No
Other Pals
3
Xenolord breeding recipes
1
Fixed passives on Xenolord
2
Custom slots available
2
Verified evidence claims behind this verdict
2
Xenolord parent pairs with a direct source of Otherworldly Cells
1 of 1
Otherworldly Cells breeding route for Xenolord: 1 of 1 parent pair include a direct source (Xenolord).
Why
Otherworldly Cells is a fixed passive on Xenolord in v1.0.3; every Xenolord has it.
How Otherworldly Cells can be acquired on Xenolord in v1.0.3
Current method
Available for Xenolord?
Note
Fixed / innate
Yes
Otherworldly Cells is fixed on Xenolord — it is born with it.
Random pool (catch or hatch)
No
Otherworldly Cells: no verified rule puts it in the random pool for Xenolord.
Implant (Surgery Table)
No
Otherworldly Cells: no verified item method grants it here.
Breeding inheritance
Yes
Xenolord can inherit Otherworldly Cells along a verified breeding chain, under the standard passive-inheritance rule this dataset has not independently sourced.
Verdict per requested component on Xenolord in Palworld v1.0.3
Otherworldly Cells is a fixed passive on Xenolord in v1.0.3; every Xenolord has it.
B B · 2 sources
How it reaches this Pal
Otherworldly Cells is fixed on Xenolord — it is born with it.
Every Xenolord in v1.0.3 is born with Otherworldly Cells, so none of its 1 breeding recipe has to carry it.
What you can do now
Otherworldly Cells is fixed on Xenolord — it is born with it.
Alternative: Xenolord can inherit Otherworldly Cells along a verified breeding chain, under the standard passive-inheritance rule this dataset has not independently sourced.