Exodus is a wolf most get along with, those who he doesn't get along with is probably at fault due to their own issues not him. He is dependable and trustworthy. Because of this Reindeer knows she can lean on him and request for help.
Exodus is fierce. It's not known if he was born that way or if he became that way over time. In fact prior to joining the pack Exodus doesn't speak about his history. But it is obvious from the scars that cover his body and have taken his eyes that he was and is a wolf who will fight till the end.