Order
Kill Deadmaul inside his den at 59k, 18k Praag until he drops Deadmaul's Paw. Then sell the paw to a merchant to get the unlock.
note: low drop rate <5%
Destruction
Kill Ursan Bears inside Ursun's Den at 62k, 29k Praag to get a Deadmaul's Paw. Sell this to a merchant for unlock.