The Paladin Javelin build in Last Epoch Season 2 is a powerful endgame setup focused on raining down multiple javelins as physical projectiles, enhanced by electrify ailments and strong buffs for survivability and damage Last Epoch Gold. 

The build’s main damage source is the Javelin skill, which throws multiple javelins in a barrage that impales enemies from a distance. Key nodes like Siege Barrage and Spiked Bombardment convert single javelins into multiple projectiles, allowing you to hit many targets simultaneously. The skill benefits greatly from the unique Sierpin's Fractal Tree, which causes javelins to split on hit, significantly increasing damage and area coverage. 

Skills Setup
1. Javelin: Focus on nodes such as Divine Throws, Divine Fury, and Forceful Hurl for damage and attack speed. The barrage effect from Siege Barrage and Spiked Bombardment increases projectile count to six, and Divine Fury causes each javelin to split into two more projectiles, effectively throwing twelve javelins per enemy hit.
2. Smite: Acts as a secondary damage skill that auto-casts when you hit enemies with throwing attacks, thanks to Adorned Sentinel Idols. Nodes like Sacrifice, Atonement, and Order of Lagon boost Smite’s damage, adding significant burst and utility.
3. Symbols of Hope: Provides essential defensive buffs, health regeneration, and blocking. Keep multiple Symbols active to maintain survivability.
4. Movement Skills: Use unspecialized Lunge for mobility or Rebuke to tank boss attacks. Holy Aura and Volatile Reversal enhance survivability and damage output during tougher fights.

 Passive Tree and Gear
Invest heavily in Paladin passives like Juggernaut, Abyssal Endurance, Holy Icon, and Defiance for resistances and durability. Divine Essence is also important for buff uptime. For gear, prioritize Razorfall, Li’raka’s Claws, and Titan Heart to maximize damage and survivability.

Gameplay and Rotation
The main rotation revolves around casting Javelin continuously to maintain a barrage of projectiles, while Smite auto-casts on hits to amplify damage. Keep buffs from Shield Throw and Holy Aura active, and use Lunge to reposition quickly buy Last Epoch Gold. During boss fights, use Rebuke for tanking and Purification from Holy Aura to cleanse ailments.