Rat King builds, abilities and matchups

Deadlock Rat King abilities, item builds, game plan and matchups. Statistics cover 30 days as of 2026-10-25.

Rat King

Tier 1 Brawler · Early game · Weapon focus

Melee brawler who tanks with rats and scrap armor and leads his team

Win rate57.2%

Pick rate60.8%

Under 28 min64.6%

Over 40 min52.4%

Item builds last 30 days, 2,180,378 Rat King games · average win rate 57.0%

Rank 1 / 3This build 163,223 games (7.5% of Rat King games)Win rate 63.8%vs games of the same length +9.1%p

Ability Point Order most common order in this build · numbers are upgrade tiers

Max order 1. Scrap Grenade → 3. Royal Pestments → 2. Rat Swarm → 4. Rule, Ratannia!

Level	1	2	3	5	6	7	8	10	15	20	21	23	28	29	31	36
1. Scrap Grenade	Unlock	1			2				3
2. Rat Swarm				Unlock							1	2	3
3. Royal Pestments			Unlock			1		2		3
4. Rule, Ratannia!							Unlock							1	2	3
Picked	91%	98%	65%	87%	91%	83%	100%	96%	56%	94%	80%	96%	93%	100%	100%	100%

Level: the earliest level that step can be taken (unlocks at levels 1·3·5·8, upgrades cost 1·2·5 points). Picked: of the games with the same order up to the step before, the share that took this ability.

Where it splits: Step 3 (level 3): 3. Royal Pestments 65.4% · 2. Rat Swarm 34.6% / Step 9 (level 15): 1. Scrap Grenade 55.9% · 2. Rat Swarm 29.6%

Early0~10 min#1~5

Core · #1~5 in order · components included

Skip components you have · if short on slots, buy the upgrade directly

Mid10~25 min#6~12

Core · #6~12 in order · components included

Skip components you have · if short on slots, buy the upgrade directly

Situational

Late25 min~#13~18

Core · #13~18 in order · components included

Skip components you have · if short on slots, buy the upgrade directly

Final build, late core bought

9 base slots + 3 unlocked slots · icon numbers are the overall buy order

12 / 12 slots

Extra slot

Destroy Walkers to unlock the extra slots and hold all 12. Situational and counter items replace items in this set; they are not a 13th buy.

4 upgrades that merge components

High-Velocity Rounds → Opening Rounds
Sprint Boots → Enduring Speed
Mystic Expansion → Ballistic Enchantment
Superior Cooldown → Transcendent Cooldown

Counters swap into the final build when needed

Not recommended often bought, but a poor fit for this build

Rank: games and win rate together. Builds are ordered by the lead over games of the same length times games ÷ (games + 30,000), so a build with few games gets less credit for its lead. Number under each icon: win rate difference against items at the same price. Games in this build where the item was bought are compared with games of the same length (5-min steps), then the average of items at the same price is taken away. Expensive items are bought more in games with Souls to spare (winning ones), so only items at the same price are compared. Click an item for its effects and full stats. Win rates shown are for the build group, not for holding all 12 items of the final build at once.

Build styles 1,500 real games (last 3 days, normal games of 20+ min) grouped into 3 styles by where the build went · grouped by: items bought by 20 min · the numbers beside an item are its average purchase time and the share of that style owning it · deadlock-api.com

Vitality · Weapon mix · Titanic Magazine

39% of games · win rate 53.2% · 590 games

Weapon 40%Spirit 11%Vitality 50%

Early (~10 min)

Opening Rounds6:35 · 61%
Swift Striker9:30 · 51%

Mid (10~20 min)

Titanic Magazine11:19 · 62%
Enduring Speed13:34 · 39%
Fortitude15:50 · 82%
Fleetfoot16:20 · 48%

Late (20 min~)

Ballistic Enchantment22:52 · 49%
Berserker23:06 · 72%
Spirit Resilience25:13 · 47%
Siphon Bullets29:05 · 43%
Juggernaut31:30 · 39%

Vitality · Weapon mix · Cultist Sacrifice

39% of games · win rate 54.5% · 591 gamesWeapon +3%p vs other styles

Weapon 44%Spirit 8%Vitality 48%

Early (~10 min)

Opening Rounds5:43 · 65%
Cultist Sacrifice9:57 · 100%

Mid (10~20 min)

Swift Striker12:12 · 35%
Enduring Speed12:19 · 59%
Fortitude14:34 · 93%
Fleetfoot15:42 · 53%
Ballistic Enchantment19:23 · 81%

Late (20 min~)

Escalating Resilience21:02 · 35%
Berserker22:33 · 78%
Spirit Resilience23:13 · 52%
Superior Cooldown23:37 · 30%
Siphon Bullets28:02 · 48%
Juggernaut29:33 · 32%

New player pickVitality · Weapon mix · Ballistic Enchantment

21% of games · win rate 62.7% · 319 games

Weapon 39%Spirit 11%Vitality 50%

Early (~10 min)

Opening Rounds6:07 · 70%
Swift Striker9:00 · 49%

Mid (10~20 min)

Titanic Magazine10:30 · 54%
Enduring Speed11:50 · 44%
Fortitude13:45 · 83%
Fleetfoot15:22 · 43%
Ballistic Enchantment16:27 · 98%

Late (20 min~)

Berserker21:23 · 80%
Superior Cooldown24:12 · 33%
Spirit Resilience25:13 · 55%
Siphon Bullets27:40 · 53%
Juggernaut31:16 · 38%

"New player pick" is the style with the highest win rate among those used in 15% or more of games. Win rates also reflect skill gaps, so within 2%p is about even. At first, buy the picked style in order; once comfortable, fit in counter items for the enemy comp.

Ability max order ability maxed first · last 30 days

4. Rule, Ratannia!36%

1. Scrap Grenade32%

3. Royal Pestments22%

2. Rat Swarm11%

Abilities

1. Scrap Grenade Radius 8m

Throw a grenade of scrap that detonates multiple times, dealing bullet damage and applying slow.The grenade can be meleed to knock it away.

Against it: Melee the grenade away when it lands

2. Rat Swarm 50m

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.

Against it: Dash on the ground or in the air to shake off rats

3. Royal Pestments

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.

Against it: Bullets bounce back while the armor holds, so use abilities

4. Rule, Ratannia! Radius 20m

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.

Against it: Don't fight near the banner; pull enemies away from it

Gun

Rat King's gun

2 pellets · Ammo 24 · 3.3 bullets/sec · DPS 40 · full damage to 20m, minimum from 50m

Playing against

Dash right away to shake off rats
Shoot less while his armor is up and break it with abilities
Melee the grenade away or leave its radius

Counter items

Spirit Resilience

Debuff Reducer

Strengths

Armor barrier deflects bullets back at attackers
Rat Swarm shreds enemy Bullet Resist
Banner gives allies slow immunity and damage reduction

Weaknesses

Rats can be shaken off with a dash
Scrap Grenade can be meleed away
Buffs fade away from the banner

Game plan

Laning

Poke with Scrap Grenade and Rat Swarm and soak damage with the armor.

Mid game

Take down enemies with shredded resist alongside your damage dealers.

Late game

Plant the banner, go in with your team and take damage up front.

Power spikes

His ultimate banner makes the whole team tougher and faster in fights. His scrap armor barrier grows as Vitality items stack up.

With them on your team

Fight near the banner for move speed and damage reduction
Enemies with rats on them have low Bullet Resist, so focus fire

2026-10-25 · 30 days · deadlock-api.com, 랭크 기본 매치 · Deadlock API