I tried to to do the vault of glass and it was the worst video game experience i have had in years. we were fighting Atheon, It was awful terrible, Im a level 26 and i would usually lasted the longest and i was the lowest level. Atheon would be hard enough to beat with out henchmen and teleportation of team members! I hope it gets easier at level 29 or 30 i hope to try to do the vault of glass at a higher level.