Im at 200 and nowhere near maxing out. lv8 charms, lv10 runes, 1x lv10 refine and others are lv7, mangatamas l7 and 9 more levels to get in treasured tool. Thats at least 20k+ worth of power before i max out. Sure, i hit those diminishing returns, but there are features like myoboku which are still fairly cheap (around 1 cave key rebate worth) that give you ~300 per tile. Costumes give me anywhere between 1-2k depending which one. And other positions are just way, way behind. Theres a lot of room to improve, but charms and refine take an awful long to do it as low casher. Refines and threads should really get some sort of discount, because 20k for 9>10 refine which gives 1k bp is highly inefficient nowadays. But getting 1.5k bp per week isnt as hard as you describe, even with those * diminishing returns.

@Laxus

Yeah, he's decent. But he isnt anywhere near as good as jonin or sosp and he's most definitely not worth his price in this meta. Been testing another 2 mains and teams for last 5h and results are just plain bad. He doesnt excel in anything, he depends on too many things (see my post above). Mediocre dmg on mystery, mediocre def, no undodgeable standards, no undodgeable mystery, unreliable passive because it triggers once 2 rounds and requires a kill as well, also you cant even set it up because of random line targetting. SA removal is good, although you hardly ever want to start combo immediately on SA ninja. Chakra drain is good. Standard dmg is good. Chaos is good as well, but not that favoured because of immunes.. Best thing about chaos proccing on opponent ninja attack is that it carries over to next round. He's just balanced in everything, but currently cant use him either as move1 or move2, because he doesnt excel in any of those roles, there are better ninjas that do the same (except aoe remove super armor) but better. He's a jack of all trades but master of none. If you get him for free in rng event when you dont have meta team, hes going to be good. But you may just as well use now kushimaru team for dmg, any 5k madara for chakra drain or water chaos bomb for chaos and be more successful. Kicked him out of the team, gonna revisit revisit next Christmas.