Sadly this info is wrong. Never ever take of Razed ruins. ever. the below poster is throwing away an obscene amount of white dmg and aftermath proc dmg.
RR Apoc VV
As for the answer, I find using Atma of the Voracious Violet, Atma of the Harvester, and Atma of the Smiting Blow to be a solid set up for Tachi: Fudo.
Looking at these questions, I've seen this same question at least 4 times in the past week. Before asking try seeing if its already been answered lol