In the expansive universe of *Dungeon Fighter Online*, the dragonkin have long been a formidable adversary for heroes. This challenge continues in *The First Berserker: Khazan*, where players face off against the high-ranking dragonkin, Viper. Created by Hismar to lead defeated dragons in spreading chaos, Viper is a powerful foe even without accessing Hismar’s full power. For those needing guidance on how to overcome this threat, here’s a detailed strategy to help you succeed.

Phase 1

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Before entering the boss area, ensure your skills are optimized for your chosen weapon. Summon the Spirit of Advocacy just outside the gates to the boss for an additional ally. Upon confronting Viper, be vigilant for the following attacks:

• 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 and up to two spear throws.
• A four-hit combo featuring a spinning spear and dual-direction swipes.

Timing your blocks effectively and executing Perfect Guards will rapidly deplete Viper's stamina. Keep the pressure on with continuous attacks and Brutal Attacks whenever possible. The Spirit of Advocacy can serve as a useful decoy. When Viper reaches half health, it will roar and summon an energy tornado; move away to avoid being pulled in.

Image Source: Nexon via The Escapist

After the energy tornado, Viper will unleash a leaping slam and introduce a grab attack, signaled by the spear tip flashing. Dodge to the right to evade this. It also gains a new ranged attack with the spear spinning vertically, followed by jumping attacks. All previous attacks now deal more damage and include additional hits, so maintain a defensive stance. A successful Perfect Guard on the final hit of its five-hit combo will stagger Viper, providing a window for significant damage.

Once Viper's health is depleted, the battle transitions to Phase 2.

Phase 2

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

At half health, Viper summons a storm that darkens the arena. During lightning flashes, it will leap towards you for multiple attacks, ending with a charge and an uppercut. Parry or dodge these moves, and use Viper's aggressive behavior to your advantage. Be aware of the new leaping slam attack and adjust your position accordingly.

Monitor your stamina closely to avoid exhaustion during Viper's sustained combos. Successfully defeating Viper rewards you with over 10,000 Lacrima, Hismar’s Scale, several Fallen Lord items, and the Hunter’s Ring.

With this comprehensive guide, you should now be well-equipped to tackle Viper in *The First Berserker: Khazan*. For further assistance with the game, visit The Escapist for more resources and tips.