No 60 day old server has lvl 80s. Jonin medal need 2 weeks just to give a single day of extra xp over a f2p player. Even longer if you don't have an OP 9tails team.

Sage naruto or ninjas available isn't even that big an issue tbh. Even initiative disadvantage can be compensated for with team building.. but the raw power difference cannot be dealt with. If I'm 30k and I face a 50k opponent, that opponent will deal far more damage and take a lot less, despite using the same ninjas as me. While it won't be as one sided as in matsuri, the difference is still very significant.

I've been trying the cancer team at 25k pow vs midnight mifune darui danzo. vs 25k pow is a one sided stomp for cancer team. vs 35k is a close match. vs 60k pow is a one sided stomp for the danzo team.

Just use the cancer team yourself (gnw tenten mabui azure + 4th). You will kill most teams that doesn't have a massive pow advantage over you.