Reins of the Green Proto-Drake

Source
This item is hatched from Mysterious Egg. These are sold by Geen in Sholazar Basin for, you will need to be at Revered reputation with The Oracles. You may only carry one Mysterious Egg at a time, each of which takes three days to hatch (Patch 4.0.3a). It has an extremely low drop chance (increased slightly in 4.0.3a).