Here are some buffs Quinn should get besides bugfixes
#Change the cooldown of Harrier (after attacking the target) to 3/2/1 second(s) at higher levels instead of 3 seconds all-game.
Harrier's cooldown should be more rewarding in team fights if Quinn keeps triggering it. This can let her burst people down pretty dang fast, but still wouldn't let her match the DPS of other marksmen (provided appropriate numbers are used).
#Fix Tag Team's cooldown to begin cycling upon activation, not after Skystrike is used.
This one is REALLY required. Quinn's ult doesn't start cycling its cooldown until AFTER you use Skystrike, which can add up to 20 seconds to the cooldown before it starts cycling. That absolutely BLOWS when you want to use it for roaming, or when you want to stay as Valor for the full duration. Why it hasn't been fixed already, I have no clue.
Let's face it: Quinn isn't in a good spot. She's not a good team-fighter for a marksman, and can't split-push either. She's also not good as an assassin due to her burst not being strong enough compared to other assassins.
Maybe the above changes, along with some bugfixes, could get her back on track.
