I just joined a run of Arah explorable mode, we went the way where the first boss is a wraithlords minions (Crusher and a Hunter) that went normal. Then the 2nd boss (Mage Crusher) the leader said to stand on a specific spot on the rock the boss is standing on. When the entire group was together, the boss did not use a single attack on the group. I brought this up that it was an exploit and was kicked for it.