I'm sorry but the level 1 vanity Shadow minion disguise does not allow you to enter the 2nd portal in the Red Deagon Lair map.

It has been attempted on characters that have the New Age quest completed and those that have not completed the quest complete.

The crafted Level 1 Shadow Minon vanity does not give you access to The elite onyx boss in Black Smoke Mountain , I stand on top of the portal and no effect with the vanity equipped.