In the *Dungeon Fighter Online* universe, dragonkin have long been a challenging adversary for heroes, and this holds true in *The First Berserker: Khazan*. Facing the formidable Viper requires strategic planning and careful execution. Here's a detailed guide on how to conquer this high-ranking dragonkin created by Hismar, designed to lead defeated dragons in their chaotic endeavors.

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 ally in the fight. When facing the Viper, be vigilant for its attack patterns:

• A three-hit combo starting 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 with a spinning spear, followed by 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 decoy, significantly aiding your strategy. At around half health, the Viper will roar and summon an energy tornado; retreat to avoid being pulled in.

Image Source: Nexon via The Escapist

After 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 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 Viper, providing a window for significant damage. Once you've depleted its health, the true challenge 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 a giant sword for slashes. When it roars, anticipate two wide-ranging arm attacks followed by a Burst Attack; use Counterattack to stun it and create an opening for attack.

Once the Viper's health reaches the halfway mark, it will summon a storm that darkens the arena. During lightning flashes, the Viper will leap towards you to attack multiple times, ending with a charge and an uppercut. Parry or dodge these attacks, using its aggressive behavior to your advantage. Be aware of the new leaping slam attack and adjust your position accordingly.

Keep a close watch on your stamina to avoid exhaustion during the Viper's sustained combos. 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 dispel any uncertainties about defeating the Viper in *The First Berserker: Khazan*. For further assistance with the game, visit The Escapist.