Talk:Runic Bulwark/@comment-65.74.121.118-20130316020302/@comment-98.233.126.93-20130317192938

Aura items stack for the holders. You get one instance of the aura from your own Bulwark, and a second instance of the aura from an ally's Bulwark. It's capped at 1x self and 1x other, it can never stack beyond that.

Contrary to what the above poster's comment, there are many times where getting double Aegis/Bulwark is beneficial if the goal is the have both the holders get extra tanky. For the purpose of team-wide aura, a single Aegis/Bulwark is enough.

There are other examples of doubling up on aura items for the aura stacking mechanic, most often seen in double WotA builds. Teams that go for a double AP(or more) comp, will sometimes build WotA on both of their APs so each of them receive the aura twice.