Rat King build guide
by MetroVersion 25Updated Oct 8, 2026Guide #842174
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Bad laner, play lane slow. If too hard, run boxes. Farm sinners at 8 minutes. This is a late game character, he becomes OP after Witchmail or Plated. He is a tank but his 1 does crazy damage, buy echo shard if your team is not doing enough damage.
1Early game
Game stage · 7 items
Monster Rounds
Sprint Boots
High-Velocity Rounds
Opening Rounds
Built from High-Velocity Rounds
2Healingoptional
Author's category · 1 items
Extra Regen
3Mid game
Game stage · 9 items
Spirit Shielding
Built from Grit
Battle Vest
Enduring Speed
Built from Sprint Boots
4Late Game (Buy What You Need all items have descriptions)
Author's category · 7 items
Witchmail
Almost always against Spirit
Siphon Bullets
Against bullet, great lategame upgrade if fights last long.
Plated Armor
Almost always against gun
5Flexlocked.optional
Author's category · 2 items
Transcendent Cooldown
Built from Superior Cooldown
Luxury Lategame upgrade if flexlocked.
Juggernaut
Built from Enduring Speed
If Flexlocked.
6Flexlocked.optional
Author's category · 8 items
Bullet Resilience
Spirit Resilience
Return Fire
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.
| Scrap Grenade: Ability unlocked, step 1 | Scrap Grenade: 1 AP upgrade, step 5 | Scrap Grenade: 2 AP upgrade, step 6 | Scrap Grenade: 5 AP upgrade, step 9 |
Cultist Sacrifice
Built from Monster Rounds
Mystic Expansion
Grit
Fleetfoot
Compress Cooldown
Ballistic Enchantment
Built from Mystic Expansion
Escalating Resilience
Berserker
Superior Cooldown
Built from Compress Cooldown
Vampiric Burst
Lifesteal works on your 1. If you somehow need more survivability.
Diviner's Kevlar
Ult Max less CD, more Duration.
Echo Shard
If you need damage, your 1 is your best friend.
Lucky Shot
DPS.
Fortitude
Greater Expansion
Built from Mystic Expansion
Colossus
Almost always, HP GOOD.
Ricochet
Inhibitor
| Rat Swarm: Ability unlocked, step 2 | Rat Swarm: 1 AP upgrade, step 10 | Rat Swarm: 2 AP upgrade, step 11 | Rat Swarm: 5 AP upgrade, step 16 |
| Royal Pestments: Ability unlocked, step 3 | Royal Pestments: 1 AP upgrade, step 7 | Royal Pestments: 2 AP upgrade, step 8 | Royal Pestments: 5 AP upgrade, step 14 |
| Rule, Ratannia!: Ability unlocked, step 4 | Rule, Ratannia!: 1 AP upgrade, step 12 | Rule, Ratannia!: 2 AP upgrade, step 13 | Rule, Ratannia!: 5 AP upgrade, step 15 |
Unlock1 / 2 / 5 AP upgrade costOrder only; no timings
Current patch: the Oct 5, 2026 update, Oct 5, 2026, 11:05 PM UTC to today · ranked and unranked · all match average ranks
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