Gnw treasure give you the best cost efficient ninja like kushimaru and jinpachi and edo sasori. Those are mid to late game ninja and theyre only rares, kage ninja are only for barriers and light main is best for kushimaru teams.

Gather 300 scrolla before moving one inch. Then look at gnw or kage treasure and choose one when there's a rebate on. Imho better gnw for a f2p.

i almost got 300.. but dont know which rebate gives most reward on scrolls..