Idk if changes are made to that treasure,before rare come at every 30 draws,now im at 70+ free draws and still only one rare(Kinkaku).Year and half ago i get Gengetsu at 90 draws,on my old character.

I pulled them both multiple times to 3star them and it appears to be random after you get them both once.

That said, Edo Tensei treasure ninjas were never apart of any popular or successful team and have not received any buff in China version.

Maybe it was a bug because this was my second super rare and I got Gengetsu again.

Hi! For Edo Tensei Treasure, Second Super Rare should not be the same as the first, as long as the first Super Rare was also pulled from Edo Tensei Treasure. Keep in mind that there have been other ways to obtain him, so if you did obtain him from other means, that does not count as a Super Rare from Edo Tensei Treasure.

If you believe there is an issue though, the right place to report this would be through bug/support section found here or Customer Service found here.