It's a fair point you make, but I think that your statement forces us to look at the nightstalker in a vacuum. The nightstalker has no grenade or melee that can outright kill somebody. Striker - Shoulder Charge Defender - Magnetic Grenade Sunsinger/breaker - fusion Voidwalker - Scatter Shocklock - ??? Super melee range (I think shocklocks fit the same category as nightstalkers) Blade Dancer - Flux nades Gunslinger - Tripmines Instead of having the grenade "stopping power" that all but one other classes have, the nightstalker has only AoE/area denial grenades. Their Melee, in order to use the Wombo, requires them to sacrifice invisibility which is a devastating ability in crucible. Essentially, what they are doing with a Wombo is giving themselves a sticky nade at the cost of their melee. Doesn't sound so OP to me, at least when every other class has insta-gib abilities outside of their super.