To melt bosses in Mayhem 4 as FL4K, activate the Fade Away action skill while wielding a King’s Call or Queen’s Call pistol. Fade Away forces every shot to land as a critical hit, which triggers the signature weapon effect: refunding bullets directly to your magazine while spawning three additional projectiles that ricochet back into the target.
How the King's Call and Queen's Call Mechanics Work
Both weapons function identically in terms of core performance, serving as single-target burst engines against bosses with large critical hit hitboxes.
| Weapon Feature | Effect and Synergy |
|---|---|
| Critical Ricochet | Landing a critical hit spawns 3 extra projectiles that travel back to hit the target. |
| Ammo Refund | Critical hits return ammo directly to the magazine, allowing continuous firing without reloading. |
| King's Call | Fires fire or shock elemental variants to target flesh or shield health bars. |
| Queen's Call | Fires corrosive, radiation, or void variants to handle armor and alternate health types. |
Pace your initial shots to establish the critical hit chain. Panic-firing into non-critical body areas empties the magazine rapidly, stopping the ammo return loop and dropping your damage output.
Skill Tree Investment Priorities
Maximize single-target critical damage and ammo stability by spending skill points across the Hunter and Stalker trees.
- Leave No Trace (Hunter Tree): Provides a chance to add ammo to your magazine upon landing a critical hit. This acts as a backup system if a bullet misses the boss's main weak point during active firing.
- Hidden Machine (Stalker Tree): Increases overall damage output when the enemy is not directly targeting FL4K. This triggers frequently when Fade Away conceals your position or when your pet draws boss attention.
- Action Skill Duration & Cooldown: Spend remaining points on nodes that extend Fade Away's active window and lower its cooldown timer, reducing the downtime between burst windows.
Gear Loadout and Stat Priorities
Because this loadout operates as a high-damage glass cannon, your surrounding gear must focus on action skill availability and elemental matching:
- Artifact: Equipping an Elemental Projector artifact scales your elemental damage significantly. Match your active pistol element to the boss's primary bar (Shock for shields, Corrosive for armor, Fire for flesh).
- Class Mod: Use a class mod that grants bonus flat pistol damage or increases key Hunter tree skill ranks.
- Shield: Select a shield with passive modifiers for action skill cooldown rate to shorten the wait time between Fade Away activations.
Combat Positioning and Loadout Limitations
Maintain medium range from the boss during engagements. If you stand too far away or behind environmental obstacles, the ricocheted projectiles can lose tracking or collide with terrain, wasting damage. Have your pet draw aggro before entering Fade Away so the boss remains stationary for easy critical tracking.
This loadout is specifically optimized for solo boss farming runs. It performs poorly in general mobbing scenarios against spread-out enemies or targets lacking clean critical hit points.
Free Kings Call 2 Codes
Current active codes and how to redeem them.
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I tried this today and it worked better than my old setup.
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