I play a glamour build for zerging and large battles in wvw and I’ve found that with all the aoe and lag that its hard to actually get any good shatters off so I pretty much pick a nice packed spot of enemy Zerg drop chaos storm and then drop all of my glamours and watch the bags come in then I just attempt to get good shatters off when I can. I’ve seen groups just melt them selves and die in seconds while doing this.