If u dident win the helm or pet on the headless horseman, ask the dude to trade them to u , u dont need to learn them or use them , u just need to go trought 1 Zoning.
Example, i got the hallowed helm form a friend that traded me , i ported , and bum , got achiements and my violet proto drake .
No pics , i dont care, it works , im happy.
Update, This seems to work with the HELM ONLY!