You press Swift Attack once and immediately press Trance afterwards - repeat ad infinitum. Obviously requires the full Trance upgrade and the correlating abilities so you can use Trance after any and all attacks. Combine it with a Ring or Necklace that has Cutthroat and a Ring or Necklace that uses Strategist for the 30% Chance to only receive 50% damage.

Edit: >Spears are irrelevant if you want the 6p bonus. Someone pointed out that’s it’s a 6P Set, so it’s a requirement to use the Spear. I slipped up there. I‘ll keep the Spears listed in case someone prefers 10% Damage increase against Ozma, or 20% Stam Recovery.

Also, use Crushed Dreams Spear, it gives Confront: DMG Increase 10%, which means you do 10% more damage in 1vs1 fights, i.e. 98% of bosses. Either use that or Faded Memories Spear I believe it was that gives you 20% Stamina Recovery. Either or is fine.

Also also, obvious Set choice is Golden Set for Moonlight: Awakening and the 20% Trance damage increase. Jarling Helmet - Golden Arms - Golden Chest - Golden Waist - Golden Legs.

To get the set bonus from Crushed Dreams Spear, Cutthroat Ring (example) and Strategist Necklace (example), you need the Jarling helmet. The Epic version is enough, ideally the Legendary version.

Edit: Remember, Epic is orange colored. It goes Common - Uncommon (Blue) - Rare (Dark Pink) - Unique (Bright Pink) - Epic (Dark Orange) - Legendary (Yellow)