Rat King build guide

Parzelion's Rat King Build

by ParzelionVersion 10Updated Oct 8, 2026Guide #844167

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Observed usage

Match statistics · filters applied except game mode

Published guide

As written by the author · latest version · not affected by filters

In-game favourites: 0 (as last synced by the API; not match usage)

Author's notes

Twitch.tv/Parzelion

Item categories

1Core
Author's category · 10 items
1. 1
  High-Velocity Rounds
2. 2
  Extra Regen
3. 3
  Opening Rounds
  Built from High-Velocity Rounds
4. 4
  Cultist Sacrifice
5. 5
  Extra Health
6. 6
  Fortitude
  Built from Extra Health
7. 7
  Enduring Speed
8. 8
  Compress Cooldown
9. 9
  Return Fire
10. 10
  Escalating Resilience
2Protecoptional
Author's category · 2 items
1. 1
  Spirit Shielding
2. 2
  Guardian Ward
3Late Game stuff (Greens op)
Author's category · 9 items
1. 1
  Ballistic Enchantment
2. 2
  Superior Cooldown
  Built from Compress Cooldown
3. 3
  Siphon Bullets
4. 4
4Sewer belongingsoptional
Author's category · 23 items
1. 1
  Berserker
2. 2
  Hollow Point
3. 3
  Greater Expansion
4. 4

Categories appear in the author's order. Only the editor's default Early, Mid and Late sections are marked as game stages; the author's own categories keep their names. “Built from” links come from the game's item recipes.

Published ability order

Published ability order: unlocks and upgrades in the author's order, one row per ability in slot order
Scrap GrenadeScrap Grenade	Scrap Grenade: Ability unlocked, step 1	Scrap Grenade: 1 AP upgrade, step 2			Scrap Grenade: 2 AP upgrade, step 5			Scrap Grenade: 5 AP upgrade, step 8