Until You Fall NO DAMAGE NIGHTMARE CLEAR (All bosses!)

Another run with Dueliist Edge and Knight-Blooded Crest.

My last no-damage nightmare clear already had the first boss area cleared out from a previous run that I died from (different build that I'm not so good at).

This no-damage Nightmare clear run is complete with all boss areas. =)

The Dueliist Edge and Knight-Blooded Crest is pretty surely the most powerful weapon combination in the game, albeit contingent on near-flawless execution. The ability to strike and block as quickly as anything, with a good reach, and a 50% damage boost at full health (one of the few weapon traits that are exclusive to a particular weapon), AND the 20% guard damage boost from the KBC makes the duelist edge the DPS king. On top of that, you have 5 dash charges here.