End game like 2 years from now on? 720 cp is like 2 weeks of save cp. 100% worth getting him. I retake my 4th-6th rank in ninetails thank to him, before that I was struggled around 11-12th place. This post was last edited by Kouka at 2016-10-15 00:35

25x5 = 125 from ninetail
15x7 = 105 from tree
~150 from 63 group lucky board spin
I can gain extra from events, new ninja recruit 50cp/e, complete plot chapter, etc...
But 125 + 105 + 150 = 380 then x2 =760 which I think is enough for Iruka if you can manage to full donate and learned all or sacrifice your group skills.