If my opponent has Jirachi GX with "Psychic Zone" Ability, does Golurk's "Theta Stop" Ancient Trait bypass "Psychic Zone" and apply Weakness?
Psychic Zone will not be applied to Golurk because of Theta Stop, so any attacks done to Golurk would still apply Weakness. Attacks done by Golurk wouldn't be affected
Source: TPCi Rules Team (2020-03-12)

Relevant cards

Note: All applicable cards may not be listed below.
SM11_79
SM11_79
XY7_7
XY7_84