You can this boss Pal for yourself through breeding, and it's not that hard.
It's less risky to get it from an egg.
Shadowbeak is a menace in its boss fight, but you can use its power in your favor through breeding.
This massive Pal is a rare wild spawn, even though it's one of the first boss Pals you face in Palworld.
It's the best way of getting one.
There's an easier way to get Faleris than trying to make it spawn in the Wildlife Sanctuary.