War cry becomes semi-spammable in multiplayer crucible

While playing with my father in his multiplayer crucible server, on my vitality skeleton death knight, around wave 100+ I noticed that my war cry, instead of working normally, lets out from 2 up to 5 little war cry’s and only then the recharge begins, I’ve checked all my equipment, settings etc, I have no mods and this completely disappears once I enter the campaign