The way this Build works is that you slot the Ash of War: Bloody Slash on to both Scimitars so that when you strike with both weapons via L1 you build up Bleed faster. To do this you will need a Lost Ashes of War and you'll need to Duplicate it at Blacksmith Hewg.

Focus on using running and jumping L1 attacks as these do 4 hits very quickly, as opposed to just L1 by itself which does 2 or rolling L1 which does 3.

Keep in mind enemy Bleed bars are not visible, but they drain just like players, meaning you must strike repeatedly and often or you won't rip off chunks of HP via Bleed. Enemies also seem to have increased resistance with each subsequent Bleed, so it will take more and more strikes the more you set this Status.

Play aggressively, but make sure not to get yourself killed going for the Bleed proc. Wear the heaviest Armor you can and still mid roll, so that if you do get hit, it deals the least amount of damage possible.

Use Bloody Slash when necessary, but it's situational. It's long cast time makes it hard to use, even if it's damage is incredibly high.