Here's a detailed guide for a Whirlwind build for the Assassin class in Diablo 2: Resurrected. This build focuses on utilizing the Whirlwind skill effectively, leveraging both melee attacks and the Assassin's unique skills to maximize damage output and survivability.

Whirlwind Assassin Build Guide

Build Overview

The Whirlwind Assassin combines melee combat with the agility and utility of the Assassin, using the Whirlwind skill to deal damage while maintaining mobility. This build is effective in both PvE and PvP settings, allowing for high burst damage and quick movement.

Skill Allocation

Place one point into the following

Cloak of Shadows
Mind Blast

Place Twenty points into the following in this Order

Claw Mastery
Weapon Block
Fade
Death Sentry
Fire Blast 15-18 points

You can use the remaining points into venom

    Stat Allocation

    1. Strength: Allocate enough points to equip your desired gear
    2. Dexterity: Allocate enough points to equip your desired gear
    3. Vitality: All Remaining points into Vitality
    4. Energy: 0

    Gear Recommendations

    • Weapons:
      • Prioritize dual-wielding claws. Look for claws providing:
        Chaos Claw - Weapon Block
        Ethereal Off hand with good Enhanced Damage and attack rating

    • Armor:
      • Enigma
      • Helm:
        • Guilamme's Face
      • Rings/Amulet:
        • Highlord's Wrath
          FCR Ring with Attack Rating Mana Steal
          Raven Frost
      • Belt:
        • String of ears

          Gloves 

          Laying of Hands 
      • Boots:
        • War Traveller is great for magic find or the + Damage

          Swap

          Call to arms + Spirit Monarch

      Gameplay Tips

      • Using Death sentry first and then Whirlwind will increase your kill speed,
        Make sure to use Battle command first,battle Orders,fade then Venom

      Mercenary Recommendations

      • Act 2 Mercenary (Might): 
      • Andarial's Visage
        Ethereal Fortitude
        Ethereal Infinity