I played a game last week as Phoenix, wherein I won a Ring, played Display of Power to steal the opponent's Ring, won a second Ring, and then ended up triggering Tsukune's ability for the final two Ring effects, meaning I managed to get all five Ring effects in one turn!
I joked about it being an "enlightenment victory", but actually, I hope they never bring that back as a victory condition. It wasn't exactly easy, but it didn't seem too terribly difficult, either (and even if they made it that you had to claim all five Rings, I have to imagine people would end up finding ways to do that too reliably, too). The game is great where it is, with primary victory conditions being beating your opponents in court or in battle, with Honor/Dishonor being boundaries, and Rings being an important part of each conflict!