I used to get 10 grenades during Radiance. Gear and stats seemed to be a non-factor in this. With 2.0, suddenly I was lucky to get 4 off. I was told that it was due to the stat rebalancing, and that with TTK gear, I'd be back to normal in no time. To me, that sounds like a stealth nerf to the ability, which didn't appear to be tied to any stats before, in terms of how many grenades you could throw. It was just a 1-second cooldown during Radiance. Now, I've gotten a little bit of gearing done in TTK, and it seems improved on where it was last week, but still not back to 10-grenades plus the two in the chamber I had to start that I had before 2.0. I haven't been back to Crucible since TTK launched, but I remember the absurdity of using Fireborn to self-res in Crucible, figuring on pummelling my killer with grenades, only to become a big, fiery target, standing there with my junk in my hand, because I couldn't have grenades fast enough. Dying immediately after rezzing, being unable to do anything about it is embarassing.