Your pets can come in different rarities, including Common, Uncommon, Rare, Epic, Legendary, Mythic, and Divine. That's not all, you can risk your pets by sacrificing them to the dark ritual to have a chance to make them DARK, for a 3x stat boost. However, if the pet does not have enough darkness stored in them, the ritual will fail, and the pet will be destroyed. The chance of success is a just 10% chance. You can also ascend, resetting all progress to upgrade a sacred totem that will significantly increase stats.