Scroll over them for rares.

Seal has all the akatsuki members (Normal forms), excluding Pain, along with the 3 Sannin (war), and Chikamatsu Chiyo, it's random for when they're pulled.

Tendo has the 5 pains, Wind Blade, Sage Jiraiya, and, worst of all, Beheading sword Kakashi, as rares, at every 60 pulls

Sage naruto has Ao, Traitor Orochimaru, and Sage Naruto as rares, 60 or so each

Edo Tensei has Snake Kabuto, Mu, Ginkaku, and Kinkaku, averaging at 30 per rare.

Though, in terms of commons, seal, tendo, and sage all tend to have the same pool (Kakashi, Guy, Kurenai, Asuma, Baki, Chiyo, Shizune in seal, Zabuza, mist zabuza in tendo, and a few other 3*)

Edo Tensei has GNW Tenten, BS Kakashi, and a few more gnw ninja.

For the super rares, None are in Seal.

Tendo has, well, Tendo Pain and Hashirama as super rares, at 400 scrolls each.

Sage has 100 puppet Sasori at 400 scrolls.

And Edo Tensei has Rasa and Gengetsu at 110 scrolls each...

Though, I've gotten a dupe rasa before (After pulling him before)

Danzo's right about the metagame treasures, which start showing up at lv 65, if you'd like, I can give you a run down of them, Easy08

I risked it, managed to get him as my 2nd rare in there.

I don't have any regrets going for him, got me Traitor to, so...