So the cards were in vanilla but the actual fair didn't come in until Cata?
The island was later, the faire has been there since Vanilla. Stopped outside Stormwind and Thunderbluff alternately if I recall correctly.
Let the grinding commence!
No, the Darkmoon Faire was introduced in Patch 1.6 (ie Vanilla). https://wowwiki.fandom.com/wiki/Patch_1.6.0
So, classic Wow players have a site they can look at just classic news, but people who play the current game don't get the same luxury ? And don't just say i can turn off the classic coverage, because I've turned it off like a hundred times already ...
I believe the Ace of Beasts can also drop from Immolthar in DM:W
And all 4 elemental invasion mini-bosses have a very good chance to drop the Ace of Elementals