>>149398016
>What kind of relationship do Cass and Damien usually have in the comics?
almost none, but its a moot point. Gunn or the other writers will change what he wants as needed.
Cass was largely absent due to editorial for a lot of Damian's early years as Robin, but the few times they interact significantly it's him being sort of an asshole and Cass putting him in his place.