This Borderlands 4 Rafa build dubbed 'Peacebreaker Cannon Beamer' build is a fun, kill from a distance Remote Agent build for Rafa that turns his red skill tree into a devastating engine of destruction. By leaning into the Beam Team augment and stacking action skill duration, Rafa unleashes a constant barrage of lasers that shred enemies without relying heavily on the player's skill to hit shots. This makes it a fun and overpowered way to let loose and destroy hoards of enemies, for all players.
With proper setup, the Peacebreaker Cannon Beamer lets players focus on maintaining status effects and critical hits to extend action skill uptime, ensuring that Rafa’s beam cannons stay active and keep scaling in damage. The longer the cannons are up, the harder they hit, making this build feel more powerful the deeper into fights you go.
Although the build shines brightest when mowing down mobs, it also shows surprising consistency in boss encounters as long as you manage phases and aim the beams effectively (which honestly is not very difficult!). Movement buffs from Overdrive further enhance survivability and mobility, increasing the enjoyment of running and gunning from a safe distance.
The Peacebreaker Cannon Beamer excels as both a leveling build and an endgame farming build. While there may be stronger specialized setups for certain high-end, single-target encounters, this build strikes a perfect balance of fun, mobility, and destructive firepower — making it an excellent all-purpose choice for anyone looking to experience Rafa at his best.
Rafa Remote Agent Leveling Build Overview
Core Strengths
- Insane Action Skill Damage: Beam Team lasers stack damage rapidly, melting enemies without needing heavy weapon reliance.
- Sustained Uptime: Crits and status effects extend skill duration, keeping cannons active nearly permanently in mobbing situations.
- High Mobility: Overdrive provides excellent movement speed, letting Rafa dodge and reposition easily.
- Beginner-Friendly Power: Effective even with weak gear, making it a strong leveling option.
Core Weaknesses
- Boss Inconsistency: Requires careful timing around immune phases and weak points to maximize cannon output.
- Gear Scaling: While viable with bad gear, optimized class mods and weapons make a noticeable difference in damage.
- Reliance on Action Skill: Downtime feels punishing if cannons drop off mid-fight.
- Not the Absolute Best for Endgame: Other builds may outperform it against specific high-tier challenges, especially for single-target.
Skills and Weapons
The heart of the Peacebreaker Cannon Beamer build lies in Rafa’s red skill tree, with the Beam Team augment serving as its core engine. This is unlocked later in the game, but the build is still very reliable before it is unlocked. The Beam Team capstone allows Rafa’s Peacebreaker Cannons to fire continuous laser beams at enemies, and each status effect applied boosts Action Skill damage further. This creates a compounding loop: the longer the cannons remain active, the stronger they become.
To keep the beams running nearly indefinitely, the build leverages Instinto, which boosts critical hit chance and helps restore Action Skill duration on crits. This pairs perfectly with Juarga, ensuring that as long as Rafa is scoring crits, his cannons stay online. In mobbing scenarios, this combination makes the beams feel unstoppable, allowing Rafa to shred entire groups without firing a single bullet.
On top of raw damage, Rafa benefits heavily from Overdrive, which grants baseline movement speed and scales further with bonuses from the Peacebreaker tree. This makes him highly mobile and has the added flair of laser cannons doing the heavy lifting. As you progress, you can stack more movement-related perks to enhance survivability while darting around the battlefield. All of this while the cannons do the aiming for you.
Since the cannons provide most of the damage output, weapon choice is more about utility rather than primary damage. A solid Vladof SMG or Maliwan ordnance can help trigger crits, apply status effects, or fill downtime if the beams drop off mid-fight. Guns that apply elemental procs quickly are especially useful, as they directly help keep up the Action Skill damage scaling loop.
Against bosses the Peacebreaker Cannon Beamer build can be hit or miss. The beams do lock on and dish out damage, but you need to manage immune phases and aim for weak points to get the most out of the lasers. Properly timing activations to make sure Rafa’s cannons are dealing max output is what matters most. Despite the challenges with bosses at times, his mobility and consistent uptime does make boss fights much smoother than they might appear on paper.
Finally, the build gains even more punch with a Rafa class mod that boosts Instigator stacks when cannons fire at enemies. While this doesn’t increase the cannons’ raw damage, it significantly buffs gun damage for Rafa’s secondary weapons, letting you swap seamlessly between beam output and gunplay. With the right synergy, this makes the Peacebreaker Cannon Beamer a versatile and very fun build for both leveling and endgame farming.
Pictured about are the core Skills and Passives needed for this build. Continue on with Concentrated Build Up, and select Beam Team at level 30. After level 30, the build opens up to be more situational. You should continue to invest points in passive skills that will boost how you play your character.
Some great additions past level 30 are Inspirado, to further help with uptime and decrease downtime on his Action Skill. If you are struggling to stay alive, you may go down the right side of the skill tree to invest in more shield-related skills to help survivability.
Recommended Weapon Manufactures
- Maliwan - Pairs well with status effect skills such as Vitriol and Concentrated Build Up
- Vladof - Similar to Maliwan in terms of elemental properties, as well as synergy with critical hits, Rafa's specialty in this build.