now as you all obviously know, kage bushin is naruto's signature move, he uses that every fight at some point, so if the series didn't start with him stealing this move would he be where he is today?? same goes for the demon fox chakra, he's just lucky enough to have the demon in him as well as the kage bushin, the demon gives him enough stamina to support his on going kage bushine which allows him to surprise his enemies in tricky ways in conjunction with other techniques such as henge, and now he's lucky to have a legendary sannin to train him!! otherwise he still would have ppppoooor chakra control, dunno jack about how to use his demon chakra, actually those two go hand in hand, i recall frog hermit saying because he has the demon chakra it makes him harder to control his regular chakra [?] or was that about five element seal, well in any case, that's my opinion, he's pretty fortunate to get to where he is now