Naruto has its fair share of epic badass duos with those dark and gritty vibes, but the Deidara-Tobi pair isn't one of them.

In Naruto, Akatsuki is a criminal organization. This organization has become one of the biggest threats the shinobi world has ...

Here it is, Mr. Zetsu, I found it. Maybe now I can become a member of the Akatsuki - Tobi One explanation for the rings disappearance could be attributed to the Akatsuki members defeat over time.