This item drops from Attumen the Huntsman in Karazhan. It can also be listed on the Black Market Auction House
Here you can buy Flametalon of Alysrazor for EU or US Servers.
You'll get guide for getting Flametalon of Alysrazor
You'll be able to get Flametalon of Alysrazor
Flametalon of Alysrazor mount
Additional budget for Character transfer or Character boost to max level. BMAH Services in Shadowlands now requirement to have a max level character on server, so Trial character will not work.
Free time on evening, if you choose selfplay option