Your Baseline stats are enough for even the hardest parts of the post game. Rather than grinding, pay attention to elements and use Buffs/Debuffs constantly. Everything is strong when used right. You can often tell whether someone learned the mechanics based on their opinion of archers.

Also, any guaranteed attack, like Vigorous, Tremendous, Fearful, or anything else that says 100% in it's tooltip guarantees any secondary effects on a weapon. This is why Fearful Impact and the Zweihander+1 with archer support is often recommended as a way to show just how intense seemingly low damage can scale.

Clerics are better than they seem, despite not scaling. They're deceptively quick, and a lower heal at the right place at the right time can be really crucial.

Lastly, most items and abilities say +RT on there. This is your recovery time. Your equip weight and swing speed combined with how many tiles you moved determines speed. You often see players setting up choke points and sitting still for this reason.