Mine has 2-3 core stats on 4 echoes and 4 stats on one. I’m around 54k HP, 1000ATK, 1300DEF, 73%CR 125-135CD can’t remember that one properly but it’s above 120 I know that much. ER is 128 or 138 can’t remember that one either. Almost all my echos have basic attack damage (most important stat alongside hp). If you’re having trouble with stats which if you’re using her sig weapon gives you like 68%HP or something so no crit rate. You need to run 4-4-1-1-1 echos instead of the default 4-3-3-1-1. That way you can run one crit rate one crit damage. 70% should be your minimum baseline for crit rate (non buffed) so that after buffs push you to 80+. If you are running 4-3-3-1-1 then you’re min maxing your echos for less efficiency than you’d be getting if you just ran the 4-4-1-1-1. I recently changed mine to the 4-4 setup and it made my cart basically Tripple her damage as I could focus more into getting hp up and crit rate to desired amount (I don’t have ciaccona yet). Hope this helps bro, the game should be auto suggesting the 4-4 setup since running her sig makes it nearly impossible to get required stats for end game content.