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Rat King

Rat King

SN|P3R : Rat-a-Tat ( Rat King Gun )Popular#3 build among top playersAscendant+ · 465 games in the last 14 days

Author SN|P3R · Updated Oct 31, 2026

Edit

Skill order

Order set by the author · gold is the ultimate

Scrap Grenade
◆
1
2
3
Rat Swarm
◆
1
2
3
Royal Pestments
◆
1
2
3
Rule, Ratannia!
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1
2
3

Item order

Stages top to bottom, items left to right

  1. 1

    1. Early Game

    13,600 Souls

    L-R || Build Gun + Mobility & then Pivot to 5000 HP Tank || Titanic ⇌ Escal Res, Can get Cultist ↘

    1. Monster RoundsMonster RoundsSell this item, once slotlocked
    2. High-Velocity RoundsHigh-Velocity Rounds
    3. Extra HealthExtra Health
    4. Opening RoundsOpening Rounds
    5. Swift StrikerSwift Striker
    6. Titanic MagazineTitanic MagazineCan pivot to Escalating Resilience, if you require Bullet Resist. (Although do note that you will be stacked Anti-Gun Items later on + your Maxed 3, so ideally go with Titanic for more Ammo)
    7. Battle VestBattle Vest
    8. FortitudeFortitude
    9. FleetfootFleetfoot
    All item notes
    • Monster Rounds — Sell this item, once slotlocked
    • Titanic Magazine — Can pivot to Escalating Resilience, if you require Bullet Resist. (Although do note that you will be stacked Anti-Gun Items later on + your Maxed 3, so ideally go with Titanic for more Ammo)
  2. 2

    Early game

    Optional4,000 Souls
    1. Extra RegenExtra Regen
    2. Cultist SacrificeCultist Sacrifice
  3. 3

    2. CORE

    43,200 Souls

    Ballistic + Berserker → ⇧DMG Stacks || Spirit Resil / Plated ⇄ Witchmail / Colossus (All Interchangable)

    1. Enduring SpeedEnduring Speed
    2. Ballistic EnchantmentBallistic EnchantmentBallistic can be put on Grenade or Rats. Grenade has buffed in the latest patch and ideally keep it on his 1 now. Feel free to keep on 2, if you prefer Rats like the earlier iteration
    3. BerserkerBerserkerBallistic + Berserker in Fights/Rift/Midboss → ⇧Weapon DMG Stacks
    4. Siphon BulletsSiphon Bullets
    5. Spirit ResilienceSpirit Resilience
    6. JuggernautJuggernaut
    7. SpellslingerSpellslinger
    8. Plated ArmorPlated ArmorOutstanding Item which will make you near invincible against Gun damage (combined with your 3 + Siphon + Juggernaut). Against Spirit Heavy DMG, get Witchmail or Colossus earlier.
    9. Vampiric BurstVampiric Burst
    All item notes
    • Ballistic Enchantment — Ballistic can be put on Grenade or Rats. Grenade has buffed in the latest patch and ideally keep it on his 1 now. Feel free to keep on 2, if you prefer Rats like the earlier iteration
    • Berserker — Ballistic + Berserker in Fights/Rift/Midboss → ⇧Weapon DMG Stacks
    • Plated Armor — Outstanding Item which will make you near invincible against Gun damage (combined with your 3 + Siphon + Juggernaut). Against Spirit Heavy DMG, get Witchmail or Colossus earlier.
  4. 4

    Gun Choices

    Optional6,400 Souls
    1. Escalating ResilienceEscalating Resilience
    2. Heroic AuraHeroic Aura
  5. 5

    3. End Game Items

    38,400 Souls

    NOT L-R, Your Choices

    1. Transcendent CooldownTranscendent Cooldown
    2. WitchmailWitchmail
    3. FrenzyFrenzy
    4. InhibitorInhibitor
    5. UnstoppableUnstoppable
    6. ColossusColossus
  6. 6

    6400 Greens

    Optional19,200 Souls
    1. SpellbreakerSpellbreaker
    2. IndomitableIndomitable
    3. Cheat DeathCheat Death
  7. 7

    6400 Barriers

    Optional12,800 Souls
    1. Divine BarrierDivine Barrier
    2. Diviner's KevlarDiviner's Kevlar
  8. 8

    Green Options

    Optional17,600 Souls
    1. Bullet ResilienceBullet Resilience
    2. Metal SkinMetal Skin
    3. Return FireReturn Fire
    4. CounterspellCounterspell
    5. Dispel MagicDispel Magic
    6. Fury TranceFury Trance
  9. 9

    Spirit Options

    Optional9,600 Souls
    1. Superior CooldownSuperior CooldownExcellent Option to get around Mid Game for Cooldown Reductions, especially your ULT
    2. Greater ExpansionGreater Expansion
    3. Superior DurationSuperior Duration
    All item notes
    • Superior Cooldown — Excellent Option to get around Mid Game for Cooldown Reductions, especially your ULT
  10. 10

    Gun Options

    Optional12,800 Souls
    1. Armor PiercerArmor Piercer
    2. SilencerSilencer