The green aura will heal any allies in its radius, not instantly but over time. Saw it happen on me then tested it mutiple times, comes in handy when everyone is fighting over the Spear of Olympus, gives your team an edge!
it heals allies? I just tested it an hour early and saw it regen'd health but allies as well? What if BoAx4?
The Barbarian Hammer aura prevents you from being launched/tossed and while the aura is on you can press L1 + Triangle again to shoot 3 charges in front of you that can launch your opponent into the air. This can be done multiple times while the aura is up, not just once as someone stated above.
^and that's why we need descriptions......see now I'd use barb hammer an nothing else just cause no launching....