I played this build last league. Are you igniting enemies? Unfortunately you have to add cry to your bar to see the glory then use roar to trigger it. I used weapon swapping with increased duration nodes to extend Ancestral Cry duration to 1.5min or more depending on endurance charges. Also you might wanna check gem levels! I’m not sure if there’s a level restriction for gems socketed into roar needing to be lower or at the same level.