Elemental System

The Pentagram is the item that switches the elemental system on for your character. Every new character receives a Pentagram for Beginners: drop its box on the ground and you get a Pentagram of a random element together with beginner Errtels. It goes in its own slot at the lower right of the inventory.

Each Pentagram carries Elemental Damage and Elemental Defense options, and you raise them with jewels just like normal gear (see Item Upgrade (+1 to +15) and Jewels). Hold Alt and right-click the Pentagram to open its elemental window, where you see its options and Errtel slots. The Elemental tab of the character window adds up everything your Pentagram and Errtels give.

Errtels are the gems you set into a Pentagram. There are five types — Fury (called Anger in older guides), Blessing, Integrity, Divinity and Radiance — and each one has one of the five elements. A Pentagram dropped by field monsters can come with up to 4 Errtel slots opened at random, and you can only fit an Errtel into an open slot. The Radiance slot is opened with an Expansion Scroll of Radiance slot.

Since Season 16 an Errtel of any element can go into a Pentagram of any element, and skills with elemental imprints no longer care which element your Pentagram has. Every Pentagram also got built-in options against one counterpart element, which grow when you enhance the Pentagram:

Season 16 also made your normal stat points feed elemental attack and defense, and changed several Errtel options from percentages into flat values so they are easier to read.

The rank-up combination was simplified and now always succeeds. Put two Errtels of the same type, the same element and the same rank, both at level 7 or higher, into the combination window. The one on the left is the main material: it moves up one rank and keeps its options. The one on the right is used up.

• A Pentagram comes with a limited number of trades when you first get it. The starting number depends on the Pentagram, and it is at least 1.
• Drag a Tradable Seal onto the Pentagram in your inventory: the seal disappears and the trade limit goes up by 1. You can repeat this up to a limit of 255.
• In the Season 8 guide, a Tradable Seal could only be stored in the vault.

Season 16 added a Mastery grade above normal. A Mastery Pentagram can be worn from the 3rd class and level 800. Normal Pentagrams take normal Errtels and Mastery Pentagrams take Mastery Errtels; the Errtel of Radiance has no Mastery grade and fits every Pentagram. Upgrades are done at Adniel in Elbeland (37, 215).

• A failed Mastery Pentagram upgrade destroys the Pentagram. On success, attribute options are removed; take your Errtels off before the upgrade.
• Mastery Errtels have no ranks: they keep all options of ranks 1–3 at level 0, and a level-up raises all their options together (one level up on success, one down on failure).
• Mastery Errtels give set effects. A full 4-piece set gives, for example, Supreme Attack +60 and Elemental Damage +100, or Supreme Defense +45 and Elemental Basic Defense +20.
• Mastery Pentagrams get attribute option slots (one per Fury, Blessing and Divinity slot). You create an option with an Errtel of level 3 or higher, 10 Jewel of Creation and 10,000,000 Zen (100%), then raise it with Elemental Runes up to level 10.

For how the level and stat changes of later seasons fit around this, see Season 16 to Season 18 and Character Stats.