well just sharing in f2p player with lvl 67 almost 68 today with 21k+ power

u just use coupon for magatamas/BA/mood/refine or some ninjas if u really wanted them and good for your current lineup

like i always save my coupon when gnw tenten on the event and its good for my lineup i will buy them and saveup coupon again for next week or so

if u f2p saveup ur seal scroll around 60-120 and pull in tendo or 5 kage later on same with summon currently i have the golden cat

u can get strong ninja from point arena/group/ranked/Survival

for monthly event just get sealscroll and lvl 4 attack magatamas and if u have someleft go to summon scroll

u can get fragment from survival/elite tho , so saveup some stamina to do elite each day for ninjas u want