Shadow Surge
Fighter: Shadow Blade
LegendaryDamage Boost
Boosts all damage by roughly 15% while below 50% HP (community-estimated).
Passive (always active)Community-reported
Fighter passive abilities database
Brawl RNG Passive Abilities Guide
Jim Liu · Updated 2026-06-22 · Data from tracked arena sessions and community reports
TL;DR: Every Brawl RNG fighter comes with one passive ability that triggers automatically in arena. Passives are tied to the fighter, not equipable separately. Use the database below to search by rarity, filter by effect type (Damage Boost, Defense, Lifesteal, Luck, and more), and compare up to four passives side-by-side before deciding which fighter to chase. All values are community-reported estimates unless an in-game panel confirms the figure.
Passive abilities database
Search by fighter name or ability name, filter by rarity or effect type, and use the compare feature to put up to four passives side-by-side. Expand any card to see full mechanic notes, how to get the fighter, and what loadouts the passive works best in.
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Showing 12 of 12 passive abilities
Luck Infusion
Fighter: Star Weaver
LegendaryLuck / RNG
Passively increases your aura luck stat by a flat amount while this fighter is in the loadout.
Passive (always active)Community-reported
Aura Pulse
Fighter: Nova Drift
LegendaryLuck / RNG
After a kill, grants a temporary luck boost to the next aura roll (community-reported).
On killCommunity-reported
Null Reflection
Fighter: Void Walker
MythicControl / Debuff
Has a chance to reflect one debuff back to the attacker each round (community-reported).
On damage takenCommunity-reported
Finishing Blow
Fighter: Eclipse Striker
MythicDamage Boost
Deals bonus damage on the killing hit (community-reported; bonus magnitude unclear).
On killCommunity-reported
Prism Refract
Fighter: Crystal Shard
EpicDefense / Shield
Converts up to 20% of a single incoming hit into temporary bonus HP (community-reported).
On damage takenCommunity-reported
Ironclad Core
Fighter: Iron Fist
EpicLifesteal / Healing
Recovers a small amount of HP each time Iron Fist deals a hit (community-reported).
On hitCommunity-reported
Mana Ward
Fighter: Arcane Sentinel
EpicUtility
Blocks one special-ability use by the opponent per match (community-reported).
Passive (always active)Community-reported
Evasive Step
Fighter: Phantom Rush
Super RareSpeed / Evasion
Small chance to dodge an incoming hit entirely each round (community-estimated 15-20%).
On damage takenCommunity-reported
Blood Rush
Fighter: Berserker Prime
Super RareDamage Boost
Attack speed increases after taking damage, triggering faster hit sequences (community-reported).
On damage takenCommunity-reported
Stone Wall
Fighter: Stone Guard
RareDefense / Shield
Blocks the first hit each round entirely, absorbing all damage from that strike.
On damage takenCommunity-reported
Counter Stance
Fighter: Mirror Knight
RareDefense / Shield
Deals a small counter-hit to the attacker when Mirror Knight takes damage (community-reported).
On damage takenCommunity-reported
How passive abilities work in Brawl RNG
Passive abilities are always-on bonuses that activate based on in-arena conditions rather than player input. Each fighter in Brawl RNG carries exactly one passive and one active ability. The passive runs in the background every round, and you cannot turn it off or swap it. Because the passive is bound to the fighter, your choice of fighter is also your choice of passive.
Passives fall into two broad groups by when they fire. The first group triggers on an event such as taking a hit, landing a hit, or reaching a health threshold. These passives produce conditional bursts of value. The second group is permanently active and adds a flat bonus to a stat for the whole match regardless of what happens. Luck-type passives from Legendary fighters tend to fall in the second group because they affect your rolling stats outside of arena rather than a fight outcome.
Passive abilities versus active abilities
The distinction matters for loadout planning. An active ability gives you a deliberate one-time or cooldown-gated action you choose when to fire. A passive runs without your input. In the best loadout builder you pick a fighter for its synergy score, which accounts for the fighter's active. Passive abilities are not currently part of the synergy score formula because their conditional trigger makes them harder to model against a specific opponent. Use the passive database here to assess the passive separately, then combine both evaluations before committing an Omega Box pull.
Passive ability categories explained
The database groups passives into seven effect categories. Knowing what each does helps you filter for the gap in your current loadout rather than browsing the full list.
| Category | What it does in arena | Best for |
|---|---|---|
| Damage Boost | Multiplies outgoing damage under specific conditions (low HP, on kill, etc.) | Aggressive burst builds that can reliably trigger the condition |
| Defense / Shield | Absorbs, blocks, or converts a portion of incoming damage each round | Sustained fights where you take repeated hits |
| Lifesteal / Healing | Restores HP on hit or over time, extending survivability in long matches | Attrition builds that want the fight to last multiple rounds |
| Luck / RNG | Adds a flat or percentage boost to your aura-roll luck stat while the fighter is equipped | Players actively grinding for rare auras between matches |
| Control / Debuff | Reflects, blocks, or copies the opponent's debuffs and special abilities | Counter-meta builds against debuff-heavy opponents |
| Speed / Evasion | Grants a chance to dodge incoming attacks entirely | High-variance builds that can tolerate RNG swings |
| Utility | Covers non-combat passives such as special-ability interrupts | Flexible support role in loadouts that already cover damage and defense |
Example passive ability builds
Three representative setups showing how a passive ability defines the rest of the loadout. All values are community-reported estimates.
Burst loadout
Shadow Surge (Shadow Blade)
LegendaryShadow Surge activates at low HP for extra damage when the fight goes long.
Strategy: Pair with a Rage Serum item and aggressive turn-1 aura for maximum pressure.
Tank / sustain loadout
Counter Stance (Mirror Knight)
RarePassive counter-hits accumulate across 4+ rounds without using any action.
Strategy: Combine with Iron Fist lifesteal and a Vital Charm item for sustained matches.
Aura farming loadout
Luck Infusion (Star Weaver)
LegendaryFlat luck bonus added to aura roll stat while Star Weaver is in the loadout.
Strategy: Stack with rebirths and Luck Potion item before grinding for high-rarity auras.
How to get Brawl RNG fighters with passives
Every passive ability is tied to a specific fighter. The pull path depends on the fighter's rarity. Rare fighters drop from regular Boxes and have the highest pull frequency. Super Rare fighters appear in Mega Boxes and occasionally in regular Boxes at lower rates. Epic, Mythic, and Legendary fighters require Mega Boxes or Omega Boxes, with Omega Boxes being the primary path to Legendary-passive fighters. Save your Omega Boxes for Legendary targets rather than opening them for common rewards.
Active codes give free Boxes, Mega Boxes, and Omega Boxes that can produce fighters with strong passives without spending in-game currency. Check the active Brawl RNG codes page before any serious pull session. For a read on which fighter to target given your current box count and luck setup, run the Brawl RNG luck calculator.
Related tools and guides
Use these alongside the passive abilities database to build and plan your full fighter setup.
Best loadout builder
Pick your aura, fighter, and item slot and get a synergy score. Pairs with the passive database to evaluate both the active and passive sides of a fighter choice.
Aura tier list with luck simulatorIf you are targeting a Luck or RNG passive fighter to improve aura grinding, check which aura tier is worth chasing first given your current luck stat.
Secret items guideSome secret items interact with passive ability triggers. Read the secret items guide to find combinations that amplify your passive value.
Luck calculatorCalculate the pull odds for a Legendary or Mythic fighter carrying the passive you want. Enter your estimated box count and drop rate to see the cumulative probability.
Frequently asked questions
What are passive abilities in Brawl RNG?
Passive abilities in Brawl RNG are permanent bonus effects that come with specific fighters. Unlike active abilities that require you to trigger them, passives activate automatically based on in-game conditions such as taking damage, landing a hit, or dropping below a HP threshold. Every fighter in Brawl RNG has one passive and one active ability. The passive is always present and does not cost you an action.
How do I get passive abilities in Brawl RNG?
Passive abilities are tied to individual fighters rather than being separate equippable items. To get a specific passive you need to pull the fighter that carries it. Rare passives come with Rare fighters from regular Boxes, Epic passives with Epic fighters from Mega Boxes and Omega Boxes, and Legendary passives with Legendary fighters primarily from Omega Boxes. You cannot transfer a passive from one fighter to another or equip a passive without the associated fighter.
Which passive ability is best in Brawl RNG?
The best passive ability depends on your playstyle and the rest of your loadout. Damage Boost passives like Shadow Surge work well in aggressive burst builds. Defense passives like Stone Wall and Counter Stance suit sustained fights. For aura grinding, Luck and RNG passives from Legendary fighters like Star Weaver and Nova Drift are most useful. Use the filter on this page to sort by rarity and category to find passives that match your strategy.
Do passive abilities stack in Brawl RNG?
Community reports indicate that most passive abilities do not stack with themselves if the same ability appears twice. Different passives from different fighters generally apply separately without explicit diminishing returns documented. However, stacking two defensive passives (such as a shield and a lifesteal) is a common strategy for survivability. Exact stacking rules have not been confirmed by official ChillyTea Studios patch notes, so treat stacking information as community-observed rather than verified.
Can I compare passive abilities before pulling a fighter?
Yes. Use the comparison feature on this page to add up to four passive abilities side-by-side. Select any abilities with the 'Add to compare' button and a comparison table appears below showing rarity, category, timing, full effect, and acquisition path in one view. This is useful for deciding which Mega Box or Omega Box target gives you the passive that best fills a gap in your loadout.
Are Brawl RNG passive ability numbers accurate?
The values in this database are community-reported estimates based on player match observations and session logs. ChillyTea Studios has not published an official passive ability breakdown with exact percentages. Each entry on this page is labelled with its source type (community-reported, in-game panel, etc.) and includes a source note where relevant. Use the numbers as planning estimates rather than guaranteed figures, and check for any game updates that may have changed values.
About Jim Liu: Sydney-based developer who tracks Brawl RNG arena sessions across different fighter loadouts and passive combinations to build the comparison data behind these tools. Writes first-person guides based on recorded session data. Read more on the About page.