I dont know about his drop rate, but to get to lvl7 you need to drop around 25k. So its not a good way to get him, mostly cuz the tree is not that great for power later on, and i take you are kinda over the "mid game" power as you have 52 SS itachi frags. Better wait for shinobi feast, you can easly get last frags from there, should be coming next week. ;)

33k actually XD

@OP: yes the drop rate is nice, but you need to reach the level 7 that costs around 33k coupons.

33k... that's too much for me even if the drop rate is nice :\

anyway thank you guys for the respond and information

I was guesing, but oncei logged in and spent 10k on tree, i understood imma only lvl5, and need 10k more for lvl6, then yh.... messed up :D Ty for correection :d