The only way a Special Eevee (like own Tempo) Rockruff DISTRIBUTION will work, is if all Eeveelutions get a new Ability only if you Evolve this Eevee to them.

Since most of us will try to evolve it to its previous Evos (because YouTube).

When it Evolves to Umbreon, Espeon, Glaceon, Leafeon, Vaporeon, Flareon, Jolteon, Sylveon by normal methods it gets what Serebii calls: Special Ability

So think Umbreon with a Special Ability
Espeon with a Special Ability


This may be IT because there was a leak of a "Umbreon and Espeon" form or Z move during Ultra Sun and Moon.