If I have Galarian Weezing with "Neutralizing Gas" active and my opponent brings up a Wobbuffet with "Bide Barrier" Ability, does "Bide Barrier" turn off "Neutralizing Gas" or vice versa?
Since Neutralizing Gas was in effect before Wobbuffet became active, it takes precedence and Bide Barricade does not activate as long as Neutralizing Gas is in effect. Whichever one comes into effect first would take priority in this situation.
Source: TPCi Rules Team (2022-03-31)
Say I have Slaking with "Lazy" as my Active Pokemon and my opponent has Wobbuffet with "Bide Barricade" as their Active Pokemon; also my opponent has Garbodor on the Bench and currently "Garbotoxin" is disabling all other Abilities. If I play Field Blower to discard the Pokemon Tool from Garbodor so "Garbotoxin" is no longer in effect, does my "Lazy" or my opponent's "Bide Barricade" go into effect first?
In this scenario Lazy activates first. If Abilities activate at the same time, Abilities of the player whose turn it is activate first; therefore, Slaking's Ability activates first, since it's the player with Slaking's turn.
Source: TPCi Rules Team (2018-08-02)
Yveltal with "Fright Night" Ability knocks out Wobbuffet with the "Bide Barricade" Ability which was turning "Fright Night" off. Does Exp. Share on the Benched Pokemon behind Wobbuffet work?
Yes, since Wobbuffet was not yet in the Discard Pile, Fright Night remains off and Exp. Share works.
Source: TPCi Rules Team (2017-04-20)
If a Pokemon with an Ability also has the "Theta Stop" Ancient Trait, would it prevent Wobbuffet's "Bide Barricade" from stopping that Ability?
Yes it would because Bide Barricade is an effect that is targeting the Pokemon, so Theta Stop would prevent Bide Barricade from blocking the Pokemon's Ability.
Source: TPCi Rules Team (2015-09-03)
What happens if Kecleon with "Color Change" and Wobbuffet with "Bide Barricade" end up as Active Pokemon opposite each other? Does Kecleon change to Psychic, or does Wobbuffet shut off its power and Kecleon stays Colorless?
If Kecleon starts out as Psychic and then Wobbuffet becomes Active, Kecleon stays Psychic. But if Wobbuffet is Active first, or if they both become Active at the same time (including as the starting Pokemon), then Kecleon stays Colorless.
Source: TPCi Rules Team (2014-12-04)