you could buy edo yagura in star wheel for about 10k and then you have a good jin to use with roshi, tho roshi is more a collector ninja.

i would do fuku now and buy yagura and tsunade, they are about 10k each in lucky star wheel, then you get a free edo roshi as well. tsunade will chase after yagura so they work well together, even if u dont use roshi on your team the new assist system will make him useful for yagura anyway. so 3 ninjas 2 of which you c*e the other is free all for 20k and you c*e yagura for a while without worry since he scales and resets.

this ^

or use konan with fire main so he needs to burn reflect then your main can shield to cleanse the accu after that, so he would need 3 cc r1 to stop your konan.

if you have giant katsuya mystery fully leveled then you c*e earth main with konan as well and have the earth main myst r1 using katsuya to cleanse konan(or if u have a chakra generator you c*e then use the EM double attack myst to cleanse)

shark kisame with konan lets u silence r1 with your m2 then konan r2