Select the Remembrance and you will be offered a choice between the Axe of Godrick and the Grafted Dragon. The Axe of Godrick has no associated Rune cost, and can be acquired for free from Enia.

“A long-hafted golden axe wielded by the Death Knight. Bears a representation of a decayed golden ring. Crackles with lightning, the power of the capital's ancient dragon cult. The ...