Here's a guide for creating a Phoenix Strike Assassin build in Diablo II: Resurrected (D2R).

Phoenix Strike Assassin Build Guide

Overview:

The Phoenix Strike build focuses on the Martial Arts skill tree, particularly using Phoenix Strike for its elemental damage and mobility. This build excels in dealing high single-target damage and can also clear groups effectively with the right setup.

Skill Allocation

One point into the Each of the following

Cloak of Shadows
Mind Blast
Fade
Weapon Block
Shadow Warrior
Dragon Flight

Twenty Points into the following in this order

  • Phoenix Strike
  • Dragon Talon
    Fists of Fire
    Claws of Thunder
    Blades of Ice
    Weapon Block 

Stat Allocation

  1. Strength: Enough for your gear 
  2. Dexterity: Enough for your gear
  3. Vitality: All points into Vitality
  4. Energy: 0

Gear Suggestions

Weapons:

  • 2 x Mosaic with +3 Phoenix Strike can have additional skills like Tiger strike/fists of fire/claws of thunder/blades of ice

Armor:

  • Enigma or Treachery

    Gloves
    +3 martial arts 20 IAS OR
    +2 Martial Arts 20 IAS + mods Rare

Helm:

  • Griffon's eye or Harlequin Crest

Belts:

  • Arachnid Mesh

Gloves:

  • Magefist (for faster cast rate) or Bloodfist (for life and faster hit recovery).

Boots:

  • Shadow Dancer 
  • Gore Rider 
    Tri Resist boots 
    Natalya's Soul

Rings/Amulet:

  • Mara's Kaleidscope or +2 Sin 20 FCR Amulet for 65 FCR Break point
    Stone of Jordan
    Raven Frost

    Swap 

    Call to arms + Spirit Monarch

    Act2 Might Mercenary

    Andarial's Visage/Cure
    Ethereal Fortitude
    Ethereal Infinity

    Inventory

    Assassin Torch
    Annihilus
    3 x 12% Faster Hit Recovery +1 Martial Arts Skills
    3 x +1 Martial Arts with Life
    1 x Small Faster Hit Recovery Charm with Lightning Resist
    3 x 20 life 11 Lightning Resist Small Charm
    3 x Life + All Resist Small Charm
    Gheed's Fortune
    Crack of Heavens

Playstyle Tips

  1. Use Fade at all times
    Use your Dragon Flight and teleport to keep yourself moving and your mercenary close
  2. Lay Death sentry traps first 
    Use your phoenix strike, Claws of thundre,Blades of ice and Fists of Fire to gain your Charges use Dragon Talon/Claw to refresh the charges