If you like collecting characters, pull in Edo. But, if you want someone worthwhile, don't pull there. Save for Jin. (If you want a super rare from there, only takes 200 ss). If you're tired of pulling in Kage, just stop. That's what I'm doing. At least until Jin treasure comes out, then I'll decide if I want to pull there or keep going in Kage for my last two rare.

If you get Nagato, maybe you can try him out with Gaara and Breeze Dancer! I've seen him do insane damage + BD's Dance