No it doesn’t.
You don’t know the rules of the game and are openly infringing on my rights to play it by taking an authoritative stance.
It’s none of the group’s business if I’m wearing a parry gem or not…
Nor does it say anywhere in the rules of the game that I as a shaman can’t wear a parry gem in a group setting.
Because I don’t have to. You’re not an authority in the game; even though you really act like one.
You’ve lost the entire argument, and your ignorance is displayed for everyone to see with this one simple statement…
Nothing in the rulebook of the game, anywhere, says that a shaman can’t wear a parry gem in a group setting.