Abilities » Fluffy Barrage | Abilities » Neutralizing Gas
If my Jumpluff with the "Fluffy Barrage" Ability attacks and KO's my opponent's Active Galarian Weezing with "Neutralizing Gas" Ability, can I attack a second time?
Yes, you can because Fluffy Barrage is no longer disabled.
Source: TPCi Rules Team (2022-03-03)
Abilities » Fluffy Barrage | Abilities » Neutralizing Gas
If my Jumpluff with the "Fluffy Barrage" Ability attacks and KO's my opponent's Active Pokemon, do I get to attack again if my opponent promotes a Galarian Weezing with "Neutralizing Gas" Ability before the second attack?
No, because Neutralizing Gas disables Fluffy Barrage before Jumpluff can attack a second time.
Source: TPCi Rules Team (2022-03-03)
Abilities » Fluffy Barrage
What happens for "Fluffy Barrage" if Jumpluff is Confused?
You need to flip for Confusion twice if you choose to attack twice. One flip for the first attack, then flip again if you decide to attack again.
Source: Evolving Skies FAQ; TPCi Rules Team (2021-08-26)
Abilities » Fluffy Barrage
If I attack using Jumpluff with the "Fluffy Barrage" Ability, can I do things like attach an Energy or play a Trainer between attacks?
No, you would resolve all effects from the first attack and then either perform your second attack or pass. You don't get to go back into the main part of your turn again.
Source: Evolving Skies FAQ; TPCi Rules Team (2021-08-26)