I think that, after tinkering around with Aurumoth for a little bit, it is an amazing pokemon. Illusion has much more use than the other abilities, and I haven't seen a weak armor in play yet. I may make one myself later... but Illusion is just simply amazing. Zoroark was not doing that ability any justice. I've been hiding it as a few things, but the best two that I've had work was a TrickScarf set hiding as a Staraptor (Same SR damage, and both share Close Combat) to prompt a switch and Dance on that before attacking, or more recently giving it an air balloon to dodge spikes and having it hide as a Heatran, again prompting a switch to dance on. Who's going to use fire, ghost, rock, bug, or dark attack on a heatran? Staraptor has been an amazing at taking out other auramoths, though. One Brave Bird with a shell bell hits hard and heals off some of the damage. It's not made to last beyond a few KO's anyways.