User blog comment:Skeith9/Heroic Spirits Speculation/@comment-25114576-20140701231732/@comment-5739199-20140701234435

The mounts themselves aren't Noble Phantasms (Medusa's pegasus isn't), but rather their special abilities or something else. Gordius Wheel is the cart, not the horses, Bellerophon is a saddle that enhance the pegasus' powers, not the pegasus itself.

Also, Is he a Saber or Rider? If he's a Saber, he usually won't have a mount-related NP. If he's a Rider, his stats are too strong.

Other than that, it's ok.