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.
Source: TPCi Rules Team (2020-11-12)

Relevant cards

Note: All applicable cards may not be listed below.
SWSH4_71
SWSH4_71
SWSH2_171
SWSH2_171