I am wondering what everyone feels is the best approach to FATE's as an Arcanist. I find large scale FATE's to be pretty frustrating as it's hard to lay down any serious damage before the mobs are killed. Since we have no AoE damage spell at the earlier levels I have basically just been zapping as many mobs with thunder as possible since it's an instant cast and has some upfront damage along with the DoT. This allows me to hit lots of mobs, but doesn't do much significant damage. For big boss FATE's I've had no issues, it's more the large scale trash mob FATE's that pose that challenge.
What has everyone else been doing? I'd love to hear some other strategies.