This is the real muzzleloader. I remember several months ago I suggested such a talisman to disable passives, the comments were we had enough toons that currently could disable passive, no need for such a set as these.
My other suggestion was to have a talisman that could disable another talismans ability, either passively or active attacks to trigger the ability.
Since the power creep just keeps chugging along,, I see the need for the special dungeons to try and force older or weaker toons to be leveled and used. They should also restrict no 5 or 6 set talisman used in the special dungeons. That would make it a little more challenging.