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Rat King · Brawler

Rat King guide

Complete guideData-drivenHardPatch 2026-09-16
3.1KUpdated

This guide is assembled by the site from match data and the game's own information — nobody wrote it by hand. Official and community guides appear alongside it when they exist.

Overview

Rat King is a brawler in Deadlock. Over the last two weeks it is A tier: 59.2% win rate in 24,929 games, picked in 3.9% of matches.

Strengths

  • A strong pusher: 8,934 objective damage per game on average (median 6,152).
  • Strong right now: 59.2% win rate over 24,929 games of the last two weeks.
  • Wins the lane against Pocket: 67.2% of 1,166 games with both in the same lane.

Weaknesses

  • Low base gun damage (40 DPS, #33 of 39): most of the damage has to come from abilities and items.
  • Valve rates Rat King as hard to play: expect a learning curve.

Builds

Rat King: most played build

BalancedRecommended
Open build

When to use it

The items Rat King players buy most in each phase of the game over the last two weeks (24,929 games measured), with how many buy them and how they do. Skill points in the most played order (972 games, 62.9% win rate).

Laning phase

High-Velocity RoundsBought by 78.3% of players in this phase · 47.2% win rateExtra RegenBought by 54.4% of players in this phase · 44.0% win rateOpening RoundsBought by 45.6% of players in this phase · 52.4% win rateMonster RoundsBought by 39.1% of players in this phase · 44.4% win rateClose QuartersBought by 37.0% of players in this phase · 58.8% win rateExtended MagazineBought by 23.9% of players in this phase · 63.6% win rate

Mid game

  1. 1Enduring SpeedBought by 50.0% of players in this phase · 60.9% win rate
  2. 2Extra ChargeBought by 45.6% of players in this phase · 52.4% win rate
  3. 3Sprint BootsBought by 39.1% of players in this phase · 55.6% win rate
  4. 4Extra HealthBought by 32.6% of players in this phase · 53.3% win rate
  5. 5Rapid RechargeBought by 32.6% of players in this phase · 60.0% win rate
  6. 6Battle VestBought by 32.6% of players in this phase · 60.0% win rate

Late game

Spirit ResilienceBought by 34.8% of players in this phase · 31.3% win rateSiphon BulletsBought by 32.6% of players in this phase · 53.3% win rateBallistic EnchantmentBought by 30.4% of players in this phase · 42.9% win rateSuperior CooldownBought by 28.3% of players in this phase · 69.2% win rateWitchmailBought by 23.9% of players in this phase · 81.8% win rateWeighted ShotsBought by 23.9% of players in this phase · 54.5% win rate

Skill order

Max order:3›1›2

Ability123456789101112131415
1··11···1·····1·
2····2···2·····2
333···3······3··
4······4··444···

Abilities

  • 1Scrap Grenade26sThrow a grenade of scrap that detonates multiple times, dealing bullet damage and applying slow. The grenade can be meleed to knock it away.
    Detonation Damage
    65
    Move Speed
    -20%
    Detonations
    3
    Detonation Radius
    8m
    Slow Duration
    4s
    T1: -8s Cooldown · T2: +65 Detonation Damage · T3: Add an additional final Bigger Detonation
  • 2Rat Swarm28sCall forth a swarm of rats that leap onto enemies, dealing spirit damage over time and reducing their bullet resist with every bite. The more rats are attached, the faster they will bite the target. Enemies can have multiple rats attached, but can shake off a rat early by performing a ground or air dash.
    Damage per Bite
    8
    Bullet Resist per Bite
    -1%
    Bite Interval per Rat
    1s
    Debuff Duration
    4s
    Max Attached Rats
    5
    T1: +1 Charges · T2: Increased Swarm Size +4s Debuff Duration · T3: +8 Damage and -1% Bullet Resist per Bite
  • 3Royal Pestments22sAdorn scrappy armor, gaining barrier based on your max health. As long as the armor holds, bullets have a chance to be deflected back towards the attacker. The barrier does not benefit from resists.
    Max Health as Barrier
    15%
    Bullet Return Chance
    15%
    T1: +4s Duration · T2: -8s Cooldown +15% Bullet Return Chance · T3: Reduce all damage to a max of 250 +10% Max Health as Barrier
  • 4Rule, Ratannia!Ultimate130sCharge up and summon the banner of Ratannia, granting all nearby allies increased move speed, immunity from slows, and reduced incoming damage while near the banner.
    Move Speed
    +3m m
    Damage Reduction
    20%
    Radius
    24m
    Damage
    200
    Move Speed
    -40%
    T1: -20s Cooldown and +1m Move Speed · T2: +8s Charge Duration +8s Flag Duration +8m Radius · T3: +150 Damage and +15% Damage Reduction

Most played skill order

The most played order in the last 972 professional matches with this hero. Highlighted levels are the points spent on talents.

Max order:3›1›2

Ability123456789101112131415
1··11···1·····1·
2····2···2·····2
333···3······3··
4······4··444···

Strategy

1Abilities

What each of Rat King's abilities does, as the game describes it:

  • 1 · Scrap Grenade — 26s cooldown: Throw a grenade of scrap that detonates multiple times, dealing bullet damage and applying slow. The grenade can be meleed to knock it away.
  • 2 · Rat Swarm — 28s cooldown: Call forth a swarm of rats that leap onto enemies, dealing spirit damage over time and reducing their bullet resist with every bite. The more rats are attached, the faster they will bite the target. Enemies can have multiple rats attached, but can shake off a rat early by performing a ground or air dash.
  • 3 · Royal Pestments — 22s cooldown: Adorn scrappy armor, gaining barrier based on your max health. As long as the armor holds, bullets have a chance to be deflected back towards the attacker. The barrier does not benefit from resists.
  • 4 · Rule, Ratannia! (ultimate) — 130s cooldown: Charge up and summon the banner of Ratannia, granting all nearby allies increased move speed, immunity from slows, and reduced incoming damage while near the banner.

2Skill order

The most played skill order (972 games, 62.9% win rate) goes 3 · 3 · 1 · 1 · 2 · 3 · 4 · 1 · 2 · 4 · 4 · 4 · 3 · 1 · 2. The one that wins most among the common ones (593 games) reaches 70.5%: 3 · 3 · 1 · 1 · 2 · 3 · 4 · 1 · 2 · 4 · 4 · 4 · 3 · 1 · 2 · 2.

3Items by phase

What Rat King players buy most in the laning phase, mid game and late game:

  • High-Velocity Rounds — 78.3% buy it · 47.2% win rate
  • Extra Regen — 54.4% buy it · 44.0% win rate
  • Opening Rounds — 45.6% buy it · 52.4% win rate
  • Enduring Speed — 50.0% buy it · 60.9% win rate
  • Extra Charge — 45.6% buy it · 52.4% win rate
  • Sprint Boots — 39.1% buy it · 55.6% win rate
  • Spirit Resilience — 34.8% buy it · 31.3% win rate
  • Rapid Recharge — 32.6% buy it · 46.7% win rate
  • Siphon Bullets — 32.6% buy it · 53.3% win rate

4A typical game

An average Rat King game over the last two weeks: 5.3 kills, 6.7 deaths and 15.3 assists, 39,437 hero damage, 8,934 objective damage and 43,819 souls.

5Win rate by rank

By the average badge of the game:

  • Seeker: 56.5% (441 games)
  • Acolyte: 49.5% (392 games)
  • Sentinel: 60.0% (345 games)
  • Mystic: 58.1% (313 games)
  • Ritualist: 60.0% (370 games)
  • Emissary: 57.2% (428 games)
  • Oracle: 60.2% (533 games)
  • Phantom: 56.1% (497 games)

Tips

  • Unlock order most players use: Royal Pestments (3) → Scrap Grenade (1) → Rat Swarm (2) → Rule, Ratannia! (4).
  • Upgrade Royal Pestments first, then Scrap Grenade; put points in the ultimate when you can.
  • First buys: High-Velocity Rounds, Extra Regen and Opening Rounds.
  • Your gun hits hardest within 20 m; past 50 m it deals minimum damage.
  • Last-hit troopers and shoot the soul orbs they drop: souls are your gold and your level.
  • Deny the enemy's orbs when you can: every denied orb is souls they don't get.

Matchups

Strong against

  • Pocket65.2%win rate in the matchup

    Rat King wins 65.2% of the 3,401 games measured against Pocket in the last two weeks.

    3.4K matches

  • Paradox64.9%win rate in the matchup

    Rat King wins 64.9% of the 3,603 games measured against Paradox in the last two weeks.

    3.6K matches

  • Mirage64.6%win rate in the matchup

    Rat King wins 64.6% of the 1,842 games measured against Mirage in the last two weeks.

    1.8K matches

  • Viscous64.5%win rate in the matchup

    Rat King wins 64.5% of the 2,277 games measured against Viscous in the last two weeks.

    2.3K matches

  • Venator64.0%win rate in the matchup

    Rat King wins 64.0% of the 5,679 games measured against Venator in the last two weeks.

    5.7K matches

Works well with

  • Victor68.8%win rate in the matchup

    Rat King and Victor on the same team win 68.8% of 394 games measured in the last two weeks.

    394 matches

  • Graves65.1%win rate in the matchup

    Rat King and Graves on the same team win 65.1% of 1,156 games measured in the last two weeks.

    1.2K matches

  • Kelvin64.9%win rate in the matchup

    Rat King and Kelvin on the same team win 64.9% of 348 games measured in the last two weeks.

    348 matches

  • Mo & Krill64.2%win rate in the matchup

    Rat King and Mo & Krill on the same team win 64.2% of 458 games measured in the last two weeks.

    458 matches

  • Ivy64.1%win rate in the matchup

    Rat King and Ivy on the same team win 64.1% of 755 games measured in the last two weeks.

    755 matches

Changelog

  1. Guide created for patch 2026-09-16.

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