The dragonkin have long been a persistent threat to heroes in the Dungeon Fighter Online universe, and players will face this formidable enemy once again in The First Berserker: Khazan. As such, strategic caution is essential. For those struggling with how to defeat the Viper boss in The First Berserker: Khazan, here’s a detailed breakdown to help you succeed.
Phase 1
Image Source: Nexon via The Escapist
The Viper is a high-ranking dragonkin created by Hismar to command defeated dragons and continue spreading chaos. Even without Hismar's power, it remains a powerful opponent.
Before entering the fight, ensure your chosen weapon’s skills are fully configured. We recommend summoning the Spirit of Advocacy just outside the boss gate for added support.
Upon engaging the Viper, watch out for the following attack patterns:
- Three-hit combo: Two stabs followed by a spear swing
- Two-hit combo: Left-to-right spear swings
- Large sweep + leap back: Then throws its spear up to two times
- Four-hit spinning combo: Includes directional swipes
Effective blocking and executing Perfect Guards will quickly drain its stamina. Seize every opportunity to counter with Brutal Attacks. Having the Spirit of Advocacy as a decoy significantly improves your survival chances.
At approximately half health, the Viper will roar and generate an energy tornado around itself—keep your distance to avoid being pulled in.
Image Source: Nexon via The Escapist
After the tornado dissipates, be ready for a leaping slam attack. The Viper will also attempt a grab move indicated by a flashing spear tip—dodge to the right to avoid it. It now introduces a new ranged attack that sends the spear vertically into the air, followed by two jumping strikes.
All previous attacks become more aggressive and extended in Phase 1. Stay on guard and keep blocking unless you're certain you can dodge safely. Landing a Perfect Guard on the final hit of a five-hit combo will stagger the Viper, giving you a prime chance to deal heavy damage.
Once the Viper’s health bar depletes, prepare yourself—the battle is far from over.
Phase 2
Image Source: Nexon via The Escapist
Now empowered by Hismar’s strength, the Viper regains full health and becomes even more dangerous. Its fortified left arm delivers downward smashes and wide swipes, while the giant sword unleashes devastating slashes. When it roars, expect two sweeping arm attacks followed by a Burst Attack. Use Counterattack at the right moment to stun it and open a window for offense.
When its health drops to about 50%, the Viper summons a storm that darkens the arena. Each lightning flash signals a leap toward you. This sequence repeats several times before ending with a charge and an uppercut strike. Dodge or parry these moves carefully and use the Viper’s aggression to create openings for your own attacks.
It will also add a leaping slam to its repertoire, so adjust positioning accordingly to avoid being caught off guard.
Always monitor your stamina closely. Running low during one of the Viper’s extended combos leaves you vulnerable. Managing your resources wisely is key to surviving this intense phase.
Defeating the Viper rewards you with over 10,000 Lacrima, Hismar’s Scale, Fallen Lord items, and the Hunter’s Ring.
With this guide, you should now have a clear strategy on how to beat the Viper in The First Berserker: Khazan. If you need further assistance with the game, feel free to explore more content on [ttpp].