2.5-4% Bonus Critical Chance on Chained Hit. Stacks 5 times.
12-24% Rending on Enemy Weak Spot Hit for 3.5s. Stacks 5 times.
4.5-6% Close Range damage on Repeated Hit. Stacks 5 times.
Gain 7-10% Close Damage for 3.5 seconds after killing an enemy at close range, stacking 5 times.
Duelling Sword should be one hitting basically most enemies on heavy except maulers/crushers/bulwarks and ragers (non-crit), however usually two heavies will kill them (or with ragers, a heavy and a light usually do the trick)
Light attack swing against hordes, metal heads heavy attack.
Heavy Laspistol is highly effective against all except carapace, so if you see them just use your Duelling Sword, alt-fire on the Duelling Sword is an interrupt and works on basically all enemies.
Heavy Laspistol is very good when gazing versus monstrosities, so if you can hit the head of monstrosities, rip into it with your Heavy Laspistol. Ammo pickups are extremely generous with the Heavy Laspistol, small containers give just a bit more than a magazine per pickup, so leave big bags to Veterans. Use Dumdum and Infernus for Heavy laspistol, Unyielding + Maniac perks. For autogun, I personally like to use Stripped down for 50%+ stamina immune to ranged attacks to run past enemies, but use Fire Frenzy for more damage (personal preference).
Try to keep quelling when you have gaze up (to keep stacks going when you find enemies) when there are no enemies, and try to stay at 100% when not gazing for the extra 20% damage increase.
Assail is nice to use when fighting hordes below the maximum peril for quick horde clears or for aiming at specialists you can't reach or want to safely take out.
You don't have much toughness or stamina (2 Stamina with Sword, 4-5 with Curio), but your regen is super fast it doesn't matter, however for toughness make sure to stick in coherency and it'll shoot up very quickly
If you're not comfortable with only two wounds for curio, swap stamina for wound.
Damage Resistance on Curios is a wildcard option, Stamina Regen and Toughness Regen are the priority perks, anything else is up to the player.
Regularly you'll hit somewhere between 300k-600k damage per mission, but you don't offer much to the team in terms of support, you can kill really well though and that's why this build is fun.
Talent Tree optional:
Swap the four talents on right side (Toughness boost above Disrupt Destiny keystone) to Warp Siphon -> Essence Harvest ->Empyrean Empowerment.
Disrupt Destiny tends to bug out and not mark an enemy despite it doing it every second supposedly, you're also reliant on your teammates not killing your marked targets to keep your stacks going, but if you're able to you can get upto +30% damage, +60% crit damage, + 75% Weakspot Damage.
If your teammates keep pace with you, you can keep your stacks going and feel very powerful and think you're playing on lower difficulties.
Speaking of lower difficulties, this build just shreds lower level enemies, if you don't play Damnation/Auric, this build is just easy mode.