I am not sure how you get to the idea he is a special mount. Ixion seems one of the more common mounts on my server these days, at least a dozen or so of him are in rhalgrs reach all the time. he used to be rare, but now with the multiple instances opening up again, he is just an oversized flashy mainstream mount, akin to one of the primal ponies, but achievable for supercasuals too.