Not extremely op but just enough to be worth looking at. Firebolt with perks is a bit too good compared to other bolt grenades. It should still be special but not that much more damage. My solution would be to rework a lot of the warlock class and sub. To start I'd convert sunsinger to a support/medic sub with a slightly lowered DPS but higher team synergy and survivability. For melee I'd keep similar range but remove the lunge in favor of shotgun blast properties (which will decrease damage at max range) and give it greater knock back so it'll function more to keep and gain distance from CQC instead of being CQC friendly (it just makes sense for this arch type to be weaker in melee range). Then make glide more stable to getting hit. Decrease max warlock armor buff recovery to include some degree of cool down reduction. Also buff the effect of agility slightly to make it more significant. Then buff a few of the Voidwalker abilities and perks. Light reduction to transcendence. Decrease the max distance from the user of the chain effect on storm trance. Buff a few underused perks/abilities for it. Nerf landfall damage but increase stun effect and area (cannot panic super but can still crowd control on activation). Think that's about it. More a rebalance than a nerf.