If you stop your growth at level 70 you can't run a ton of teams since many of them require the 4th mystery that unlocks at level 80 or the 3rd last passive that unlocks at 85. For breeze dancers means no sand dust and no natural draining, for mb means no iaido, that's the must have mystery for cloud blitz, for sb means no +50% boost damage on wb/summon and no immune shield mystery. The only main you can run without them currently is azure fang, but you still have big problems in wb and snake since she uses skewering for them and in many ninja exams where reserve seal and skewering are required to win and without them you need 20k more power.