In the expansive universe of *Dungeon Fighter Online*, the dragonkin have long posed a formidable challenge to heroes, and this threat persists in *The First Berserker: Khazan*. As players prepare to face the Viper, a high-ranking dragonkin crafted by Hismar to lead and incite chaos among the defeated dragons, caution becomes paramount. Here's a detailed guide on how to conquer this challenging adversary in *The First Berserker: Khazan*.

Phase 1

Image Source: Nexon via The Escapist

Before engaging the Viper, ensure your skills are optimized for your chosen weapon. Summon the Spirit of Advocacy just outside the boss gates to gain an additional ally in the fight. When facing the Viper, be vigilant for its attack patterns:

• A three-hit combo beginning with two stabs followed by a spear swing.
• A two-hit spear-swinging combo from left to right.
• A large sweep followed by a leap away, then throwing its spear up to two times; be cautious of the returning weapon.
• A four-hit combo featuring a spinning spear and swipes in both directions.

Mastering the timing of your blocks and executing Perfect Guards will rapidly deplete the Viper's stamina. Continuously pressure the Viper with attacks and Brutal Attacks when opportunities arise. The Spirit of Advocacy can serve as a useful decoy, drawing the boss's attention away from you. At around half health, the Viper will roar and summon an energy tornado; quickly move away to avoid being pulled in.

Image Source: Nexon via The Escapist

Following the energy blast, be prepared for the Viper's leaping slam. Watch for its grab attack, indicated by the flashing spear tip, and dodge to the right to evade it. The Viper will also employ a new ranged attack, spinning its spear vertically, followed by a series of jumping attacks.

All of its previous attacks will now be more potent and include additional hits, so maintain a defensive stance. Successfully executing a Perfect Guard on the final hit of its five-hit combo will stagger the boss, providing a prime opportunity for significant damage. Once you've depleted its health, the true battle begins.

Phase 2

Image Source: Nexon via The Escapist

In Phase 2, the Viper taps into Hismar's power, becoming even more formidable with a fully restored health bar. It now uses its fortified left arm for downward smashes and swipes, and wields a giant sword for slashes. When it roars, brace for two wide-ranging arm attacks followed by a Burst Attack; use Counterattack to stun it and create an opening for attack.

As you reduce its health to the halfway mark, the Viper will summon a storm that darkens the arena. During lightning flashes, it will leap towards you to attack multiple times, culminating in a charge and an uppercut. Parry or dodge these moves, and use its aggressive behavior to your advantage. Be aware of the new leaping slam attack and adjust your positioning accordingly.

Keep a close watch on your stamina to avoid exhaustion during the Viper's sustained combos. Successfully defeating the Viper will reward you with over 10,000 Lacrima, Hismar's Scale, several Fallen Lord items, and the Hunter's Ring.

This guide should equip you with the knowledge needed to triumph over the Viper in *The First Berserker: Khazan*. For further assistance with the game, visit The Escapist.