Here is a quick guide to verifying the authenticity of your card: Look at the back of the card
The market value for this card is set at $199.00 according to TCGPlayer , from at least five listings
Akoum Alchemist's Refuge Aluren Arlinn, the Pack's Hope Azula, Cunning Usurper Blur of Heroism Borne Upon a Wind Breath of the Sleepless Captain Mar-Vell, Space-Born Cherished Hatchling Complete the Circuit Emergence Zone Final-Word Phantom Gandalf the White Gandalf, Friend of the Shire Heliod, the Warped Eclipse High Fae Trickster Hypersonic Dragon Kianne, Corrupted Memory Leyline of Anticipation Liberator, Urza's Battlethopter Mai and Zuko Najal, the Storm Runner Prophet of Kruphix Quick Sliver Quicksilver, Speedster Raff Capashen, Ship's Mage Rattlechains Renari, Merchant of Marvels Rootwater Shaman Sally Sparrow Shimmer Myr Sigarda's Aid Singer of Swift Rivers Skittering Cicada Tawnos Teferi, Time Raveler Tidal Barracuda Valley Floodcaller Vedalken Orrery Vernal Equinox Vivien, Champion of the Wilds Whirlwing Stormbrood Whirlwing Stormbrood Winding Canyons Wizards of Thay Yeva, Nature's Herald
each card was also numbered and featured the set logo just as its non-W promo version was too
It works best when some of the milling is grind and some of it is traditional milling
