Talk:Sacrifice/@comment-46.195.18.45-20150413204248

Could you include on how to unlock: players must use an attack or method that bypass walls such as explosive.

Had bad luck getting to this rigth map set with the artifact and i was engineer, the problem was none of  his skills can unlock it, it took me around 8 more rounds to get here and this time as a huntress, easy ulti shots unlocked them all.