It is an absolute must if you are going to challenge it with the same equipment. One option is to use Yatima and deal 20 million damage just by summon, but the time limit will be tough.
@@matcha_choco_gb THANKS I just finished dark solo with a ragtag primal grid. Used the yatima guard all 10% summon spam abuse to 0. Time consuming but yeah flb Nie needs to have 4th skill.