That's a really awesome looking mount. I just started up playing WOW, don't have my old account any longer so rolling a fresh character on WOW Classic. Just managed to get to level 23 today.
It really is, but it's an absolute pain to get. It's one of those secret finding mounts like the Lucid Nightmare, The Hivemind, and The Fathom Dweller. Though there's a red version you can get through a Mt. Dew promotion, and a purple one they data mined that people are guessing will probably be on the Trading Post down the line. I'm sorry to hear you lost your old account. You might try seeing if a GM can help restore it for you.
As for Classic, I don't really dabble much in it. I usually play Retail cause I just have this weird feeling that even though WoW Retail hasn't been what it was in a very long time, since about WoTLK, I still nonetheless want to play the game for where it's going, not where it's been. That and the storyline of the current World Soul trilogy of expansions actually has me quite intrigued.
Edit: My Wrathguard's name is Kill Gore Wrath, how is it even possible that a name could be this cool?
