Reins of the Violet Proto-Drake is the reward for completing the world events achievement "What A Long, Strange Trip It's Been". This mount's speed is 310% in the air. It will save you much wow gold if you gain the mount, but will take one year to finish all of the world events achievements:

To Honor One's Elders - Lunar Festival

Fool For Love - Love is in the Air

Noble Gardener - Noblegarden

For The Children - Children's week

The Flame Warden - Midsummer Fire Festival
Brewmaster - Brewfest
Hallowed Be Thy Name - Hallow's End
Merrymaker - Winter Veil
Do you know how many holidays in the current expansion World of Warcraft? What is the relationship between WoW festivals and real life festivals? The WoW festivals are according to the real life festivals, and with the update of game expansion, there are more and more game festivals that reflect customs of different countries.
"What A Long, Strange Trip It's Been" requires player finish the eight world events when to start, if you missed or haven't finished all, then unluckily you need to wait for it a whole year. You can receive mounts, pets, toys and many funny items during the celebration of world events, also will acquire a title from each world event.
Reins of the Violet Proto-Drake is an easy getting mount in WoW but need to wait for the longest time.