Pentagram and Errtels in MU Online: the elemental system
The pentagram holds errtels (elemental jewels) to boost attack and defense. Understand the modern-season system.
The pentagram and the errtels are the heart of elemental combat in MU Online's modern seasons. Mastering them is what separates a common character from a PvP monster in the current end game.
How it works
- You equip a pentagram (the system's base item);
- Fit errtels into its slots;
- Each errtel adds elemental effects (attack, defense, control);
- The right combination amplifies your build.
Errtel types
| Focus | Effect |
|---|---|
| Attack | Increases elemental damage |
| Defense | Reduces elemental damage taken |
| Control/Utility | Special effects |
Tips
- Build the pentagram around the element you want to exploit;
- In PvP, adjust the errtels against the opponent;
- Farm errtels of good rarity — weak ones yield little.
See the elements and pentagram system guide for the full overview.
Perguntas frequentes
What are errtels?
Errtels are the elemental jewels you fit into the pentagram. Each one boosts an aspect (attack, defense, control) tied to an element (fire, water, earth, wind, darkness).
How do I get errtels?
Errtels come from drops, events and specific combinations of the modern seasons. They have rarities and levels, and the best require focused end-game farming.