Diablo 4 Season 9 Best Spiritborn Build for Endgame - Skills, Paragon, Gear & More! details a powerful Quill Volley Spiritborn build for Diablo 4 Season 9. Below is a concise summary of the build based on the relevant information available:

Quill Volley Spiritborn Endgame Build (Season 9)

Overview

• Class: Spiritborn
• Primary Skill: Quill Volley
• Focus: High DPS, survivability, and versatility for endgame content like high-tier Nightmare Dungeons, Pit runs, and boss farming.
• Playstyle: Ranged, Spirit-focused, leveraging Resolve stacks and Spiritborn’s unique mechanics for massive damage and survivability.

Core Skills

• Main Damage Skill: Quill Volley (Enhanced & Reinforced) - Fires multiple projectiles for high AoE and single-target damage.
• Supporting Skills:
  • Vortex: Pulls enemies for crowd control and grouping.
  • Soar: Mobility skill for repositioning and escape.
  • Armored Hide: Damage reduction and Resolve stacking for survivability.
  • Counterattack: Defensive skill with damage reflection.
  • The Hunter: Ultimate for burst damage and Spirit generation.
• Key Passive: Vital Strikes - Boosts damage against Vulnerable enemies.

Skill Tree (Approximate Point Allocation)

• Basic: Thrust (1/5, Enhanced)
• Core: Quill Volley (5/5, Enhanced, Reinforced)
• Mid: Vortex (1/5, Enhanced), Soar (1/5, Enhanced)
• Defensive: Armored Hide ascendancy (1/5, Enhanced)
• Ultimate: The Hunter (5/5, Enhanced, Brutal)
• Passive Focus: Vital Strikes, Prodigy’s Tempo, Resolve, etc.

Gear

• Weapon: Two-handed weapon (Staff or Bow) with +% Damage to Close/Healthy Enemies or +Resolve Stacks.
• Armor: Focus on +Resolve, +Spirit Generation, +Damage Reduction, and +Cooldown Reduction.
• Jewelry: Rings/amulet with +Critical Strike Chance, +Vulnerable Damage, or +Spirit per Second.
• Aspects:
  • Aspect of Stinging Swarm: Enhances Quill Volley damage.
  • Aspect of Adaptability: Boosts Spirit generation.
  • Aspect of Inner Calm: Increases damage when stationary.
  • Aspect of Binding Embers: Improves crowd control with Vortex.
• Gems: Emeralds for crit damage or Sapphires for survivability.

Paragon Boards

• Starting Board: Focus on damage and Spirit generation nodes.
• Wither Board: For increased damage against debuffed enemies.
• Sapping Board: Boosts Spirit regeneration and sustain.
• Glyphs: Prioritize glyphs like Exploit (Vulnerable damage) or Territorial (AoE damage).

Tempering & Masterworking

• Tempering: Add +Quill Volley Damage, +Resolve Duration, or +Cooldown Reduction.
• Masterworking: Prioritize crit damage, Spirit cost reduction, and defensive stats.

Playstyle Tips

• Stack Resolve (up to 10 stacks) using Armored Hide and Counterattack for massive damage buffs.
• Use Vortex to group enemies, then spam Quill Volley for AoE clears.
• Soar for mobility to dodge high-damage boss mechanics.
• The Hunter for burst phases or elite packs.
• Maintain Spirit with Prodigy’s Tempo and gear bonuses.

Why It’s Best

• DPS: Quill Volley scales exceptionally with Resolve and gear multipliers, shredding bosses and packs.
• Survivability: Armored Hide and Resolve provide high damage reduction.
• Versatility: Excels in speed farming, Pit pushing, and boss killing.
• Season 9 Synergy: Benefits from new uniques and season mechanics (e.g., Spiritborn-specific affixes).