Talk:Rhino (Warframe)/@comment-184.18.36.25-20130928201037/@comment-10743657-20130929050952

From what I can tell, it does not. Normally if you use Roar, you cannot use it again until it's run out. If another Rhino uses Roar when you already used it and buffs you, you can use it again. That suggests that their Roar overrides yours.