Board Thread:Game Discussions/@comment-24.150.140.187-20131209021552

I remember a few events in the past where all the epic bosses cost less to summon at the summoning stone. I'm 1 item away from a plus version of a past recent boss and I don't really want to spend all those gems for 1 single item. Does anyone know when/if there will be another one of these events? Thanks 