I've been trying to get my Anubis to 11/12 it keeps saying destiny needs to go beyond level 10, I upgraded him to level 14 don't know what to do.
My guess is you need higher destiny, which is raised when you level up the heroes in that section.
750 Flamed Achieved 2/10/16. Too lazy to re-max.
There is a number of things that have to happen in Destiny, but the most overlooked is your destiny crystal level. There is a crystal requirement for Destiny levels, same as there is a dungeon flame requirement for star levels.