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Hero Siege Season 9: Samurai Explosive Kunai Build Guide

Written by:  U4N
Published: Apr 13, 2026
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In Hero Siege Season 9, the Samurai class is an exciting and powerful choice for players who enjoy fast-paced, high-damage gameplay. Among the many possible builds, the Explosive Kunai build stands out as the top-tier option for clearing content efficiently. With its focus on area-of-effect (AoE) explosions and massive damage scaling, it excels in endgame content. For those who prefer a melee-focused approach, the Quick Slash build remains a solid alternative. In this guide, we'll break down the Explosive Kunai build and offer tips for leveling, attributes, and gearing.

Hero Siege Season 9: Samurai Explosive Kunai Build Guide

Explosive Kunai Samurai Build

The Explosive Kunai build focuses on maximizing magic skill damage through intelligence scaling. The goal is to clear entire screens of enemies with explosive bursts that deal massive AoE damage. This build offers excellent mob control and speed, making it perfect for those who enjoy fast, action-packed gameplay.

Core Skill Tree (Level 100)

  1. Primary Skills:
    • Exploding Kunai (Max out): This is the main damage-dealing skill of the build, and it should be your top priority. The more points you invest in Exploding Kunai, the larger the explosions and the faster you clear waves of enemies.
    • Smoke Bomb (Max out): This ability provides both crowd control and utility. It can disorient enemies, giving you breathing room in tough battles.
    • Warrior Spirit (Max out): This skill enhances your combat effectiveness and scales with the build, improving both your damage output and survivability.
    • Live by the Sword (Max out): A key skill that boosts your survivability by increasing your attack speed and giving you damage reduction, making you tougher in battle.
  2. Utility & Buffs:
    • For Honor (1 point): This ability provides a consistent buff that boosts your damage, making it a must-have.
    • Burst of Speed (1 point): Increase your movement speed with this ability, allowing you to reposition quickly and maintain pressure on enemies.
    • Way of the Warrior (1 point): This buff boosts your magic skill damage, which is essential for maximizing your explosive Kunai damage.
  3. Movement Skills:
    • Quick Slash (Max out): This is your primary movement skill, allowing you to zip across the map quickly. It's essential for navigating through enemies and staying mobile in combat. To unlock Quick Slash, you'll need to invest 1 point in Battle Glance.
    • Empire Slash (1 point): This skill allows you to jump over walls and obstacles, making it useful for both combat mobility and avoiding certain hazards.

Attributes

When leveling up your Samurai, your primary focus should be on Intelligence. This stat increases the damage output of your Kunai, which is the core of the build. The more points you put into Intelligence, the higher the scaling of your explosive damage. Intelligence will also boost your overall magic skill damage, making your Kunai even more devastating.

You'll also want to invest in Stamina to increase your survivability, especially when tackling high-difficulty content like Hell or Inferno. With enough Stamina, you'll be able to absorb more hits without dying, allowing you to stay in the fight longer.

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Leveling Strategy

The early levels in Hero Siege can be a bit slow, but with the right approach, you can breeze through them and unlock your core skills quickly. Here's a recommended leveling strategy:

  • Early Levels (1-30): Start by maxing out Blade Barrier, which offers excellent survivability and damage mitigation. You'll also want to invest 1 point into Fan of Knives for some early AoE damage. At this stage, focus on completing quests and farming enemies efficiently.
  • Transition (Level 30): Once you hit level 30, you'll want to unlock Empire Slash for better movement and mobility. This will make it much easier to navigate around enemies and obstacles, improving your overall effectiveness in combat.
  • Mid-Levels (Level 40-60): Around level 40, focus on investing points into Warrior Spirit. This will increase your attack speed, allowing you to dish out more damage per second (DPS) and improving the "feel" of your build. The faster you attack, the more damage you deal, which is crucial for clearing content efficiently.
  • Endgame (Level 60+): At this point, you'll want to focus on maxing out your primary skills, including Exploding Kunai, Smoke Bomb, and Warrior Spirit. These will carry you through to the toughest content in the game.

Gearing Tips

Choosing the right gear is crucial for maximizing the potential of your Samurai build. Here are some gearing tips to help you get the most out of your character:

  1. Loot Filter: Use a loot filter that focuses on either "Physical Attacker" or "Caster" gear, depending on your specific needs. For the Explosive Kunai build, look for items that boost Intelligence, Magic Skill Damage, and Attack Speed.
  2. Upgrades: Save your Upgrade Tokens for high-tier items such as Satanic, Angelic, or Runeword gear. These upgrades provide significant boosts to your damage and survivability, making them essential for endgame content.
  3. Item Affixes: Focus on affixes that increase magic damage, critical hit chance, and attack speed. These will directly improve the performance of your Exploding Kunai and other skills.

The Explosive Kunai Samurai Build in Hero Siege Season 9 is an incredibly fun and powerful option for players who enjoy fast-paced, explosive gameplay. By focusing on Intelligence, skill scaling, and AoE damage, you can clear large groups of enemies quickly and efficiently. Follow the leveling and gearing strategies outlined above, and you'll be ready to take on the toughest challenges in the game. Whether you prefer to focus on AoE damage or mobility, the Samurai has something to offer for every type of player.

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About the Author: U4N

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