[@CollectorOfMyst] I meant to say that I'd have to do a little research into the Avatar testing thing as a whole. Apparently that's how Airbenders did it back in Aang's day, but I can see it as a test now. Though;

[@Gisk] has a good point;
[Hider]I always had the notion that spirits and beings 'in the know' would call the Avatars from Korra onwards "Second Avatar", because it's the second pact Raava made with a human. The fact that it was the same line of reincarnation doesn't matter to immortal beings, so Rosai is now "Second Avatar" to creatures like Won Shi Tong who care or catalog this sort of thing.[/hider]
Maybe [I]Raava[/I] remembers the old tests, though.