By Starting with 2 Gauntlets of Strenght you can rush an Urn of Shadows if anyone else is going to do it, Soul Ring to nuke enemies in the lane by spamming Wild Axes.
I think almost any aura effect is welcome on Beastmaster, like Assault Cuirass and Vlad's are the core for me, also considering the Drum of Endurance aura. You can switch your Vlad's for a Pipe of Insight if someone else is already going for it, or if there is too many rangeds on your team.
This was just a build with item explanation, not a guide. Thank you for reading.