The First Descendant: All Keelan Abilities, explained

Keelan in The First Descendant is the latest character introduced in the 1.2.0 update, aka Season 2. This descendant excels in applying debuffs and dealing explosive area-of-effect damage. His abilities revolve around stacking Acidic Decay to maximize damage and control the battlefield. You get his codes, blueprints, and more from the Void Vessel.

In this guide, we have shared everything about the abilities of Keelan in the First Descendant and more.

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What are the abilities of Keelan in The First Descendant?

Keelan is best when used as a controller (Image via NEXON)

Before we explain his abilities, here are some keywords that come with his kit:

• Acidic Infusion Level: Boosted by using his abilities. Increases Skill Power and Movement Speed with each stack.
• Acidic Decay: A stacking debuff applied to enemies, amplifying damage from specific skills.
• Blood Rot: A secondary effect triggered on enemies with Acidic Decay, causing delayed explosions that deal significant area damage.

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All of Keelan’s abilities explained

Erosion

• Effect: Activates Acidic Infusion Level, enhancing Skill Power and Movement Speed.
• Synergy: Buffs other skills, allowing for faster movement and increased damage.

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Void Corrosion

• Effect: Fires a projectile that applies Acidic Decay to a target. Expands its range with upgrades, hitting multiple enemies.
• Additional Damage: Amplified against enemies already affected by Acidic Decay.
• Utility: Ideal for initiating fights and setting up combos.

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Onslaught

• Effect: A dashing attack that damages and knocks back enemies. Applies Acidic Decay and reduces its cooldown based on pierced enemies.
• Bonus: Grants immunity to some traps during the dash.
• Synergy: Combines well with other skills for high mobility and crowd control.

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Septic Gust

• Effect: Deals damage and applies Acidic Decay in an area. Converts Acidic Decay into Blood Rot, causing delayed explosions.
• Area Effect: Ideal for groups of enemies, turning Acidic Decay stacks into massive burst damage.

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Tremor

• Effect: Consumes Acidic Decay stacks to deal damage proportional to the stack count.
• Flexibility: If no enemies are affected by Acidic Decay, it boosts Onslaught stacks instead.
• Finisher: Best used after building Acidic Decay stacks on multiple targets.

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What are the Skill Modules for Keelan in The First Descendant?

Skill modules for Keelan in The First Descendant (Image via Nexon)

Focus on Prey

• Converts Void Corrosion to a single-target skill with increased fire count.
• Increases Max Stacks of Acidic Decay, enhancing Tremor's damage.
• Recommended For: Boss fights or single-target burst damage builds.

Mobile Strike

• Converts Septic Gust into a buff that grants Adventurous Spirit.
• Prevents Onslaught from consuming stacks and adds continuous damage to pierced targets.
• Recommended For: High-mobility and sustained damage builds.

You can get Keelan's Skill Modules for here:

1. Hard Infiltration Operation
2. Hard Intercept Battle
3. Module Combine

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Tips for playing Keelan

Build and Manage Stacks:

• Use Void Corrosion and Septic Gust to build Acidic Decay on enemies.
• Maximize stacks before activating Tremor for high burst damage.

Prioritize Mobility:

• Utilize Onslaught for repositioning and avoiding damage.
• Use Erosion to maintain buffs during combat.

Crowd Control:

• Use Septic Gust and Tremor for AoE control in fights with multiple enemies.

Adapt Modules to the Scenario:

• Focus on Prey for bosses.
• Mobile Strike for fast-paced skirmishes or crowd-heavy missions.

That’s all for Keelan's skill guide for The First Descendant.

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