I didn't specifically go after any of those special armors, but I noticed something weird about my drops. My titan was first as he received the flayer cape (for hunters). Then this weekend, my warlock got the dark blade helm (for titans). Then also this weekend, I got the taniks cape (for hunters) with my titan. Notice anything odd there? I never once got any of those only the intended character of those armor pieces. This got me wondering. Has anyone actually gotten the armor piece with the class it was intended for?