Shattered Kingdoms

Just a curious question. The pet tweaks of them not casting spells and such, does that apply only to storebought pets or is it supposed to apply to controls / charms as well?

It only applies to storebought pets, as stated.

Storebought pets should basically be of animal intelligence and below Expert status. Scout tames are also required to be of animal intelligence, but can range up to mentor. Controls, charms, and dominates all have required upkeep at every tick. There is no hard and fast rule on these, it is simply builder discretion and areacheck guidelines.