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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.

VI ViciadosMU Team · Updated on 30 jun 2026 · ⏱ 5 min read

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.

Dica: Quick answer: the pentagram is the item that holds errtels (elemental jewels). Each errtel boosts an element's attack/defense. Fitting the right errtels supercharges your performance.

How it works

  1. You equip a pentagram (the system's base item);
  2. Fit errtels into its slots;
  3. Each errtel adds elemental effects (attack, defense, control);
  4. The right combination amplifies your build.

Errtel types

FocusEffect
AttackIncreases elemental damage
DefenseReduces elemental damage taken
Control/UtilitySpecial effects
Nota: The system only exists in modern seasons. In classic and Season 6, there's no pentagram or errtels.

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.
Atenção: Errtels have rarity and can fail in combinations. Don't risk the best ones without understanding your server's rates.

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.

VI

ViciadosMU Team

Equipe editorial do ViciadosMU — portal de MU Online no ar desde 2003.

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