Dunno which tree it is but the one where the more height you have, the more powerful the slam is very fun to use and does a ton a damage (if you have the height. you can't panic pop that one as it requires strategy) Thundercrash is nuts rn, it's why people use it for Atheon dps. I dunno about warlock being low level add clear, I've cleared a ton of enemies in a room; majors and minors alike. it does need a bit of a buff though as it is a bit underwhelming. Hunter Arc is just sad, Y1 it was amazing but now it's just terrible even with it's chest exotic to extend duration and increase damage.