"It's a legendary with an exotic perk" By that, I'm sure you mean that no other gun has that perk Look at Fatebringer. No other hand cannon has Firefly Word of Crota. Phantom Gift is Triple Tap, but before the House of Wolves it was an "Exotic perk" Look at the Abyss Defiant and Lich Bane. It would be considered an exotic perk because no other gun has it My point is, just because the gun has something that makes it from other weapons of its type doesn't mean it can't stay that way. Black Hammer does have a weakness, if you can't hit critical shots, then why use it. The endless ammo was what made it stand out, and now that it's going away, a lot of people will dismantle theirs.