Edo Treasure you can only get 1 frag at a time. but it is at less pulls.

Then I heard on the forum that it was nerfed requiring more or less the same pulls as Kage.

No the nerf was the amount of pulls for the fragments.

If I recall when edo treasure was released you could get 1 frag every 30 or so pulls.

From what I pulled you can only pull 1 frag at a time unlike Kage which so far has always been 2 for me.