80% of the power climb is tied to equipment. that you gacha for. you can earn Ex gear. you have to pull LD gear. and Burst while you can earn them. you basicly need multiple good teams to do that. also if you have all their gear. thats it. that character is done. pulling/buying their gear is the hardest part, there is no grind, characters go from unusible to maxed in a drop of some currentcy once you have the gear to make them usible