If Dusknoir with the "Spectral Breach" Ability is already in play and then Fusion Strike Energy is attached to a Pokemon (either mine or my opponent's), does Fusion Strike Energy prevent "Spectral Breach" from affecting it, or does "Spectral Breach" disable Fusion Strike Energy's effects?
When Fusion Strike Energy gets attached to a Pokemon it prevents the effect of Spectral Breach, therefore providing every type of Energy and preventing all effects of your opponent's Abilities done to that Pokemon.
Spectral BreachFusion Strike Energy
Source: TPCi Rules Team (2021-12-23)Dec 23, 2021Compendium → If Dusknoir with "Spectral Breach" Ability is in play, does Rainbow Energy's effect of placing a damage counter get blocked?
Yes it gets blocked, you do not place a damage counter.
Spectral BreachRainbow Energy
Source: TPCi Rules Team (2020-12-10)Dec 10, 2020Compendium → If my Beast Energy 
gets discarded while my opponent has Dusknoir's "Spectral Breach" Ability in effect, does it still go to the Lost Zone?
Yes, Spectral Breach does not affect the Prism Star Rule.
Spectral BreachBeast Energy {*}
Source: TPCi Rules Team (2020-11-12)Nov 12, 2020Compendium → If Dusknoir with "Spectral Breach" Ability is in play, does Capture Energy's effect of searching for a Basic Pokemon work?
No, it does not.
Spectral BreachCapture Energy
Source: TPCi Rules Team (2020-11-12)Nov 12, 2020Compendium → If Dusknoir with the "Spectral Breach" Ability gets Knocked Out while Recycle Energy is attached to it, does the Recycle Energy go back to my hand or not?
No, Spectral Breach is still in effect when the cards are going to the discard pile, so the Recycle Energy would be discarded.
Spectral BreachRecycle Energy
Source: TPCi Rules Team (2020-11-12)Nov 12, 2020Compendium → If Dusknoir’s “Spectral Breach” Ability is active, does Double Colorless Energy provide one energy or two?
It would only provide one 
Energy.
Spectral Breach
Source: Vivid Voltage FAQ (2020-10-31), TPCi Rules Team (2020-11-12)Nov 12, 2020Compendium → 
