So far I've got :
Osteo Striga
Quicksilver
Ability regen being tied to cooldown in pve
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This is definitely controversial but: Still Hunt If precision isn't HEAVILY rewarded people won't use it. It's unfortunate this gun released with the witness because he's basically just a giant crit. I think the gun in it's base form would've been largely unproblematic against a majority of bosses. Div being a thing definitely complicates things but they could have made it so if you hit the div cage with still hunt GG shot you do like 25% less damage or something.