Not For You
Before casting Echoes of the Void, Tichondrius will spawn numerous pillars around the room. Standing behind these pillars will negate all damage from Echoes of the Void. Thus, to obtain the achievement, get behind these pillars every time Echoes of the Void is cast before it deals any damage, and then defeat the boss.
- Patch 7.0.3 (2016-07-19): Added.