Phantoms

ok sorry i keep mistaking
but bosses like CRA require PDR
so how much should i aim for on the pdr and the boss damage
and what stat i should also aim for? % att or %dmg? cause after 250% boss damage is just unefective

It really depends on the boss, and you, I suppose, I would say, if you have like 70% on your stat window, you'd be doing at least 70% damage on everything up to Empress, the only bosses higher are Hard Magnus, Chaos Bloody Queen (both 120%, I think), CPB (180%), and Vellum (300%).

Total Damage and Boss Damage count the same on bosses, so really you should be getting % attack.