If you’ve been searching for a Biosuit that can do a little bit of everything in RF Online Next, Arbiter is probably the closest thing you’ll find. Some classes excel at farming. Others focus on duels or large-scale PvP. Arbiter somehow manages to perform well in all of them. It has strong AoE damage, reliable crowd control, self-healing, excellent mobility, and enough survivability to stay in fights much longer than most damage dealers.
After spending time analyzing the current meta and skill kit, it’s easy to see why so many players consider Arbiter one of the strongest Biosuits available at launch.
RF Online Next Arbiter Guide – Best Build, Skills, Stats
Arbiter is a close-range Force Attack Biosuit built around aggressive combat and battlefield control.
Unlike traditional melee damage dealers that rely purely on burst damage, Arbiter combines offense with sustain. It can pull enemies out of position, create powerful self-buff zones, and restore HP while attacking groups of enemies.
This makes it extremely effective for both solo players and group content.
Role: Hybrid Attacker (Burst + Sustain)
Weapon: Force Blade
Attack Type: Melee Force Damage
Difficulty: Easy to Learn, Hard to Master
Best Content:
- Solo Farming
- Dungeon Runs
- Boss Battles
- Large-Scale PvP
- Guild Wars
- Open World Grinding
Best Biosuits
What separates Arbiter from many other Biosuits is survivability.
Most melee classes need support from healers or potions to maintain long farming sessions. Arbiter can often sustain itself through its own abilities.
The class also has access to:
- Multiple AoE attacks
- Self-healing skills
- Crowd control
- Movement speed buffs
- Status immunity
- Strong Force damage scaling
This combination allows Arbiter to remain useful at every stage of progression.
Arbiter Skill
Sword of Conviction
FP Cost: 7
Cooldown: 9 Seconds
This is your basic single-target attack.
While it isn’t flashy, you’ll use it frequently during early progression and while waiting for stronger skills to come off cooldown.
Best used for:
- Single targets
- Finishing enemies
- Filling skill rotations
Flash Cut
FP Cost: 9
Cooldown: 7 Seconds
Flash Cut allows Arbiter to quickly dash toward an enemy before attacking.
This skill helps close distance instantly and keeps pressure on ranged opponents.
Best used for:
- Gap closing
- PvP engagement
- Chasing fleeing enemies
Spatial Slash
FP Cost: 43
Cooldown: 15 Seconds
One of Arbiter’s primary farming skills.
Spatial Slash damages up to five enemies at once and provides excellent AoE clearing.
Best used for:
- Farming mobs
- Dungeon grinding
- Clearing enemy packs
Sacred Area
FP Cost: 160
Cooldown: 37 Seconds
This is arguably the most important skill in Arbiter’s entire kit.
Sacred Area creates a special zone that grants:
- +1000 Force Attack
- +18% Movement Speed
Whenever possible, you want to fight inside this zone.
The damage increase alone makes it one of the strongest self-buffs available.
Law of the Executor
FP Cost: 250
Cooldown: 49 Seconds
This skill pulls a target directly toward you.
In PvE, it helps group enemies together.
In PvP, it becomes extremely dangerous because it can isolate priority targets and drag them into your team’s damage.
Best used for:
- Initiating fights
- Disrupting enemy positioning
- Target isolation
Instant Judgment
FP Cost: 380
Cooldown: 42 Seconds
This is the skill that makes Arbiter feel nearly immortal during farming.
It deals powerful AoE damage while restoring HP based on the number of enemies hit.
The more targets you hit, the more health you recover.
Best used for:
- Large mob groups
- Sustain
- Emergency healing
Stigma of Conviction
FP Cost: 580
Cooldown: 67 Seconds
This powerful AoE attack deals multiple hits and drains a portion of the damage inflicted.
The combination of damage and healing makes it incredibly useful during extended fights.
Best used for:
- Elite monsters
- Dungeon runs
- Group combat
Blade of Repose
FP Cost: 580
Cooldown: 67 Seconds
One of the strongest PvP skills in the Arbiter arsenal.
During the attack animation, Arbiter gains Status Abnormality Immunity while dealing massive AoE damage.
This prevents enemies from interrupting or disabling you during your burst window.
Best used for:
- PvP engagements
- Team fights
- Boss burst phases
Guardian’s Protection
FP Cost: 60
Cooldown: 70 Seconds
Simple but effective.
Provides a significant defense boost that increases survivability during difficult encounters.
Endurance
FP Cost: 100
Cooldown: 70 Seconds
A valuable defensive buff that:
- Reduces critical damage taken
- Improves healing item effectiveness
Excellent for boss fights and difficult PvP battles.
Best Passive Skills
Apostle of the End
Defeating enemies grants:
- 15% Movement Speed
- 2000 Force Critical
This passive dramatically improves farming speed.
Force Blade Mastery
Provides a flat Force Attack increase.
A straightforward but highly effective damage boost.
Sharpness Support
Increases Force Critical Damage by 10%.
One of the strongest offensive passives for maximizing burst damage.
Impact Piercing
Provides:
- Force Defense Penetration
- Additional Skill Damage
Extremely valuable against heavily armored opponents.
Best Arbiter Build for PvE
The Immortal Farmer Build
Focus Stats:
- Force Attack
- Cooldown Reduction
- HP Drain
- Critical Damage
Recommended Rotation:
- Gather multiple enemies.
- Cast Sacred Area.
- Use Spatial Slash.
- Follow with Instant Judgment.
- Use Stigma of Conviction.
- Clean up survivors.
The goal is simple: stay inside Sacred Area and continuously heal through damage dealt.
This build allows Arbiter to farm efficiently while rarely needing to stop for recovery.
Best Arbiter Build for PvP
The Initiator Build
Focus Stats:
- Force Defense Penetration
- Movement Speed
- Status Resistance
- Critical Damage
Recommended Rotation:
- Approach from the flank.
- Use Law of the Executor.
- Pull priority target.
- Activate Sacred Area.
- Use Blade of Repose.
- Follow with Instant Judgment.
This setup focuses on eliminating enemy damage dealers before they can react.
Recommended Stat Priority
For most players, prioritize stats in this order:
- Force Attack
- Force Critical Rate
- Force Critical Damage
- Cooldown Reduction
- Force Defense Penetration
- HP
- Defense
These stats provide the best balance between damage and survivability.
PvE Performance
Farming Score: 9/10
Arbiter is one of the best farming Biosuits in RF Online Next.
Reasons include:
- Multiple AoE attacks
- Strong self-healing
- Excellent sustain
- Fast movement
- Consistent damage
Only a few Biosuits, such as Demolisher, can compete with its farming efficiency.
PvP Performance
Large Scale PvP Score: 8/10
Arbiter performs extremely well in faction wars and guild battles.
Its combination of pull mechanics, self-buffs, AoE damage, and crowd-control resistance makes it a constant threat on the battlefield.
The ability to drag enemies out of formation often creates opportunities for your team to secure easy eliminations.