I feel like most exotics should serve at least one of 3 purposes. One as being a unique weapon. Weapons like QBB and Lord of Wolves, or NLB. Secondly being build-based. Bad Juju can be used of super chaining builds, Monte Carlo for a melee build, etc. Third is being a niche weapon. Having a unique perk that allows it to out perform everything else in situations. Ghorn and Icebreaker being examples. Every exotic should serve one of these 3 principles, or there is no reason to be exoitc. Red Death is just a pusle with feeding frenzy and life support. Thunderlord performs like an average MG most of the time.