Starting on Day 3, all hostile "monster" mobs have a chance to spawn with passive effects that make them stronger. The chance, number, and strength of these effects increase each day.
Mob strength is measured in Ranks, from 1 to 5.
A mob's Rank (1-5) determines how many and how strong its passive effects are.
For example:
Ranked mobs emit colored particles:
| Rank | Particle Color |
|---|---|
| 1 | 🟩 Green |
| 2 | 🟨 Yellow |
| 3 | 🟦 Blue |
| 4 | 🟪 Purple |
| 5 | 🟥 Red |

Rank icons

Ranked mobs in game.
Whenever a hostile mob spawns, the following will happen:
| Effect | Max Level | Selection Weight | Notes |
|---|---|---|---|
| Resistance | III | 50 | - |
| Strength | III | 40 | - |
| Speed | II | 30 | - |
| Regeneration | II | 10 | Not available for undead mobs |
| Fire Resistance | - | 10 | - |
| Invisibility | - | 3 | Lasts 30s after spawn |