[S/M] [Spoiler] Shiny hunting with allies?

[KenPhoenixx]

yes you can catch ally pokemon, as any(?) pokemon can call an ally
but supposedly you can chain these allies

Quote:The second change is Ally Chains. For those unaware, Wild Pokemon now have a chance of calling for an ally in battle. As more and more allies appear, they will have better IVs and a higher chance of being Shiny, as well as the possibility of having Hidden Abilities.

Source (Spoilers)