And regardless of the RPGN feature:

[hider=Immortal horse is best horse]
[img]http://fc08.deviantart.net/fs71/f/2014/171/a/a/zhayedan_of_pegasid_by_aaronmk-d7n9nvs.png[/img]
http://aaronmk.deviantart.com/art/Zhayedan-of-Pegasid-462345256[/hider]