Thread:ShinoKyo/@comment-5622510-20150906051513/@comment-4556304-20150906055250

Well it's a technique that spawns a large amount of paper via Fuinjutsu, used by an Amegakure nin in the filler. Normally techniques without an elemental nature would be up for grabs. But because of the circumstances of it matching usage by an Amegakure nin and being a ninjutsu that concerns itself in 90% of it's usage being with paper, it should fall under the category of a Paper Ninjutsu.

It's like letting a non-Nara be able to auto-claim a technique derived from Shadow Imitation.