So I bought Dragon's Breath from Xur today (yep, still no Gjallarhorn) but now I think I'm maybe regretting my purchase. I already have Hunger of Crota which also have solar damage + tracking and cluster damage. The Pyromancer perk on Dragon's Breath looks really cool though. I'm just looking for some input from people who have used it for a while. Is it worth leveling and have in your exotic slot or should I just put it in my vault and use Hunger of Crota until I (hopefully) get Gjallarhorn?