Mjolnir is a miniboss in The Sewers. Its level is dynamic, so its level follows the dungeon’s difficulty sync.
It wears a full set of iron armor. Lightning warnings punish players who stand still, while projectile immunity shuts down player-fired arrows, tridents, and similar attacks.
Overview
| Attribute | Details |
|---|---|
| Name | Mjolnir |
| Dungeon | The Sewers |
| Type | Miniboss |
| Base Mob | Zombie |
| Level | Dynamic |
| Health Multiplier | 4× health multiplier |
| Damage Multiplier | 1.4× damage multiplier |
| Armor | Iron Helmet, Iron Chestplate, Iron Leggings, Iron Boots |
| Leash Radius | 34 |
| Follow Distance | 38 |
Difficulty Scaling
Normal uses a +5 level sync, Hard uses a 0 level sync, and Mythic uses a -5 level sync. The listed powers are active on all three difficulties.
Powers and Abilities
- Thunderstorm: A player hit on the boss has a 25% chance to trigger it, with a 20-second global cooldown. The boss stops for 5 seconds while lightning targets random spots within 20 blocks of nearby players, and each strike has a 3-second warning. The boss is immune to lightning.
- Attack Lightning: When a player hits the boss, critical particles mark a spot under every player within 20 blocks. Lightning strikes those spots 3 seconds later, with a 15-second global cooldown.
- Invulnerability Arrow: Player projectiles such as arrows, tridents, and similar attacks do no damage to it.
Class Loot
Sewer Spelunker’s Sword, Sewer Spelunker’s Boots, Sewer Spelunker’s Chestplate, Sewer Spelunker’s Helmet, Sewer Spelunker’s Leggings
How to Beat It
Do not rely on player projectiles, because arrows, tridents, and similar attacks deal no damage to it. When critical particles mark the ground beneath you, move off that spot before the lightning lands 3 seconds later; the thunderstorm also gives each strike a 3-second warning.



