Beat Viper in The First Berserker: Khazan

Author : Nicholas Nov 13,2025

The dragonkin have consistently posed a formidable challenge to heroes within the *Dungeon Fighter Online* universe, and *The First Berserker: Khazan* continues this legacy. Players must exercise extreme caution against this threat - if you're struggling to defeat the Viper boss, here's your comprehensive battle guide.

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How to Beat Viper in The First Berserker: Khazan

Phase 1

Phase 1 combat strategy against Viper in The First Berserker: Khazan

Image Source: Nexon via The Escapist

The Viper represents Hismar's elite dragonkin commander, engineered to lead fallen dragons in creating chaos. Even without drawing upon Hismar's power, it remains an exceptionally dangerous opponent.

Before engaging, optimize your chosen weapon's skillset and summon the Spirit of Advocacy near the boss arena entrance for tactical assistance. During battle, remain vigilant against:

  • A three-strike combo beginning with dual thrusts followed by spear swing
  • A two-hit sweeping attack from left to right
  • A wide arc slash preceding a backward leap - followed by up to two spear throws (watch for retrieval)
  • A spinning four-hit combination concluding with alternating directional strikes

Mastering timed blocks and Perfect Guards rapidly drains Viper's stamina. Maintain offensive pressure whenever possible, particularly through Brutal Attacks. The Spirit of Advocacy serves as an excellent combat distraction. At approximately 50% health, Viper unleashes an energy vortex - immediately retreat to avoid being pulled in.

Surviving Viper's tornado attack in Phase 1

Image Source: Nexon via The Escapist

Post-vortex, anticipate an aerial slam and new spear grab (indicated by flashing spear tip) - dodge rightward to evade. Additional attacks now include vertically spinning spear throws and twin jumping strikes. All existing attacks intensify with expanded combos - maintain defensive positioning.

Phase 2

Phase 2 combat scenario against empowered Viper

Image Source: Nexon via The Escapist

Upon activating Hismar's power, Viper regenerates completely with enhanced capabilities. Its reinforced left arm executes devastating downward strikes and sweeps, while its massive sword delivers lethal slashes. Roaring telegraphs dual sweeping arm attacks concluding with a Burst Attack - perfect Counterattack timing creates damage opportunities.

At 50% health, Viper conjures an electrical storm that obscures visibility. Lightning flashes signal imminent aerial assaults - successful parries or dodges create counter openings. New attacks include charging maneuvers ending with uppercuts - reposition accordingly.

Critical stamina management ensures you're never vulnerable during Viper's relentless assault chains. Victory rewards include:

  • 10,000+ Lacrima
  • Hismar's Scale
  • Various Fallen Lord items
  • Hunter's Ring