Skill Trees

The Blade Sentinel Assassin can be leveled directly toward the final setup, so there is little need for a major respec later on. Start by prioritizing Blade Sentinel, then develop Blade Fury and Blade Shield to complete the main physical Damage package. Keeping your Weapon reasonably strong during progression is important, since Blade Sentinel benefits significantly from Weapon Damage even before endgame gear comes together.

Once the three Blade skills are established, max Venom to add a useful Poison Damage layer and improve coverage against enemies with high Physical Resistance. After that, invest into Claw Mastery for additional Attack Rating, physical scaling, and Critical Strike, while adding a few Points into Burst of Speed to keep Sentinel placement fast and responsive.

Keep Dragon Flight, Fade, Cloak of Shadows, and Shadow Warrior at one Point for utility. By the time you enter Maps, the goal should be to have the full 20/20/20 Blade core completed, Venom close to maxed, and enough Burst of Speed to feel comfortable. From there, stronger Claws, Deadly Strike, Enhanced Damage, and better Attack Rating become the main sources of progression.

Gear

For the main Weapon, a high-end Ethereal Rare or Crafted Claw is one of the strongest possible choices. Blade Sentinel now applies 100% Weapon Damage, so a Claw with very high Enhanced Damage, flat Minimum/Maximum Damage, Deadly Strike, Attack Rating, and useful Skill bonuses can outperform many Unique options. Stalker's Cull remains one of the premier ready-made choices and continues to be heavily associated with physical Blade Sentinel setups, while a well-rolled Bartuc's Cut-Throat offers a much more accessible combination of Skills, physical Damage, FHR, and Attributes. 

The off-hand provides one of the biggest choices in the entire Build. A +6 Blade Sentinel Magic or Rare Claw gives enormous Skill scaling and access to Weapon Block, making dual-Claw setups very attractive for pure Damage. Phoenix is the major Shield alternative because its large off-weapon Enhanced Damage multiplier scales Blade Sentinel extremely well, while Redemption adds valuable sustain that the skill itself cannot provide through Leech. More defensive setups can use Stormshield or another high-block Shield, especially for bossing or Hardcore. 

For the Helmet, Crown of Ages and Veil of Steel are excellent high-end choices because they combine strong defensive value with useful sockets for Enhanced Damage or Deadly Strike optimization. Guillaume's Face is a very effective midgame option when you still need help reaching the Deadly Strike target, while Natalya's Totem fits naturally into inexpensive full-set progression. Blade Sentinel benefits from Deadly Strike, but does not benefit from Crushing Blow, so Guillaume's value here comes primarily from its physical offensive package rather than the usual CB component.

For Body Armour, Fortitude is one of the strongest straightforward offensive choices because its large off-weapon Enhanced Damage bonus multiplies both the Weapon component and Blade Sentinel's Skill Damage. Tyrael's Might is an excellent premium alternative with strong physical scaling and defensive utility. The Gladiator's Bane is also interesting because Critical Strike can reduce how much Deadly Strike you need from the rest of the setup. During progression, Natalya's Shadow and Treachery provide inexpensive ways to reach Maps before the high-end physical pieces become available. 

For Gloves, Steelrend is one of the strongest pure physical choices thanks to its Enhanced Damage and Strength. Soul Drainer is another excellent endgame option, especially when its defensive utility and physical modifiers fit the rest of the setup. Lava Gout, Gravepalm, and Magnus' Skin are useful cheaper alternatives, particularly when trap-laying speed or extra physical Damage is still being assembled. Remember that Life Leech itself does not work through Blade Sentinel, so Gloves should be evaluated mainly for Damage, IAS, Attributes, and defensive stats.

For the Belt, String of Ears and Verdungo's Hearty Cord are the most reliable choices. Both add substantial physical mitigation, which is useful when Dragon Flight or close-range positioning puts the Assassin near dangerous packs. Trang-Oul's Girth is a solid progression option, while more specialized Rare or Crafted Belts can fill missing Resistances or FHR. Since Blade Sentinel itself does not Leech, String of Ears is chosen primarily for its Damage Reduction rather than the Life Steal modifier.

Gore Rider is the most natural offensive Boots option because Deadly Strike is one of the strongest modifiers available to the Build. War Traveler is a very competitive alternative because its flat Damage is applied to Blade Sentinel and can scale exceptionally well once large amounts of Enhanced Damage are already present. Natalya's Soul is an excellent transitional choice with movement speed and Resistances, while strong Rare or Crafted Boots can finish FHR and resistance requirements.

For the Amulet, Mara's Kaleidoscope is one of the most balanced endgame options because Blade Sentinel still values +Skills very highly while the Resistances free up other gear slots for Damage. Seraph's Hymn is another strong option against common monster types, and Highlord's Wrath becomes attractive when your setup needs additional Deadly Strike. Atma's Scarab can be useful during progression, but Blade Sentinel itself does not trigger Chance to Cast effects on striking, so its Amplify Damage proc should not be treated as reliable Sentinel support. A strong Rare or Crafted Assassin Amulet with Skills, Attributes, Resistances, and utility can outperform all of them in a perfectly optimized setup.

For Rings, Bul-Kathos' Wedding Band and Wisp Projector are excellent high-end options when you want more Skill Levels and general utility. Raven Frost remains highly practical for Cannot Be Frozen, Dexterity, and Attack Rating, while Nature's Peace and Bul-Kathos' Death Band work well during earlier progression. A strong Rare or Crafted Ring with Attack Rating, Attributes, Resistances, and Life can be particularly useful because Blade Sentinel still needs reliable hit chance even though it behaves like a Trap. 

Charms

For the Physical Blade Sentinel Assassin, Trap Skill Grand Charms are the strongest and most reliable offensive choice. Blade Sentinel gains a large portion of its Damage directly from Skill Levels, while additional Trap Skills also improve Blade Fury and Blade Shield at the same time. An Assassin Hellfire Torch and Annihilus should form the foundation of the inventory, followed by as many +1 to Traps Grand Charms as you can comfortably fit. Reddit

Because this version also maxes Venom, Poison Skill Damage Large Charms remain a viable alternative if you want to strengthen the secondary Poison layer, but they should generally come after the Trap Skiller package in a Physical-focused setup. Current dedicated Blade Sentinel guidance specifically favors Trap Skillers for Physical variants. Reddit

Use the remaining Small Charm slots for Life, Resistances, Faster Hit Recovery, and any missing Attack Rating. FHR secondary rolls on Trap Skillers are particularly valuable when working toward the 48% or 86% targets, while Life and Resistance charms make it easier to keep the equipment itself focused on Enhanced Damage and Deadly Strike.

Mercenary

An Act 2 Defensive Mercenary is one of the strongest all-around choices for Physical Blade Sentinel. His Defiance Aura provides a substantial defensive boost, while his Weapon can supply the physical support the Assassin needs most. The Reaper's Toll is especially valuable because its Amplify Damage procs reduce enemy Physical Resistance and can break many Physical Immunities, directly improving Blade Sentinel's main Damage source. Reddit

A more offensive alternative is Pride, which provides additional Enhanced Damage and Attack Rating support through its aura package. Blade Sentinel scales exceptionally well with off-weapon Enhanced Damage, so aura-based physical bonuses are unusually effective here. Templar's Might can add another source of offensive aura support if the Mercenary can meet its Strength requirement.

• The Reaper's Toll or Pride (Weapon)
• Andariel's Visage, Vampire Gaze, or another durable Mercenary Helmet (Helmet)
• Templar's Might, Innocence, or Fortitude (Armour)
• Steelrend or strong Rare/Crafted Gloves (Gloves)
• String of Ears or Verdungo's Hearty Cord (Belt)
• Rare Boots with Resistances and defensive modifiers (Boots)