Quote Originally Posted by SilkaN View Post
"It's so unfair because it didn't came to my mind that I should inform myself thoroughly before throwing my money at Square Enix. It's not my fault!"

Get rekt.
To be fair, there really isn't an excuse for Sleipnir not being able to fly now. If they can make Adamantoise and Fenrir fly, they can make Sleipnir fly, especially seeing the latter comes with a $24 price tag.