Mastery Errtels
How a normal errtel becomes Mastery: tiers, chance by rank and level, set bonuses and the Errtel Emblem.
A normal errtel can become a Mastery Errtel. On upgrade it loses its rank and turns Normal, Rare or Unique — according to the rank it had before.
The Errtel of Radiance is the only one that cannot be upgraded. In exchange, the normal Radiance works inside a Mastery Pentagram.

- Elbeland: 38, 216
- Acheron: 38, 216
The three tiers
| Tier | Options | Requires from the normal errtel |
|---|---|---|
| Normal | 1 | Rank 1 level 7 or higher |
| Rare | 2 | Rank 1 level 7 and Rank 2 level 0 or higher |
| Unique | 3 | Rank 1 level 7, Rank 2 level 7 and Rank 3 level 0 or higher |
Set bonus
| Set | 2 pieces | 4 pieces |
|---|---|---|
| Passion | Elemental DEF +30 | Supreme Defense +45 and Elemental Base Defense +20 |
| Determination | Elemental ATK +40 | Supreme Attack +60 and Elemental Damage +100 |
How to upgrade to Mastery

At NPC Adniel, option Mastery Errtel Upgrade. Every option from the normal errtel is inherited.
Material
- 1 normal errtel
- 1
Errtel Emblem - 30 Jewel of Bless and 30 Jewel of Soul
- 10 Jewel of Creation
- 25,000,000 Zen
On success: Mastery Errtel level +0. On failure the errtel disappears.
Chance, by errtel rank and level
| Level | Rank 1 | Rank 2 | Rank 3 |
|---|---|---|---|
| 0 | Impossible | 85% | 100% |
| 1 | Impossible | 90% | 100% |
| 2 | Impossible | 95% | 100% |
| 3 | Impossible | 100% | 100% |
| 4 | Impossible | 100% | 100% |
| 5 | Impossible | 100% | 100% |
| 6 | Impossible | 100% | 100% |
| 7 | 70% | 100% | 100% |
| 8 | 80% | 100% | 100% |
| 9 | 90% | 100% | 100% |
| 10 | 100% | 100% | 100% |
Examples: Rank 1 level 3 cannot be upgraded. Rank 1 level 8 upgrades at 80%. Rank 1 at 10 with Rank 2 at 2 upgrades at 95%.
The element rules the option
On upgrade, every option that names an element is converted to the errtel's own element.

An Errtel of Blessing (Fire) with the option "Target Water type DEF increases"...

...becomes "Target Fire type DEF increases" after the upgrade.
Where to buy the Errtel Emblem

- Elbeland: 32, 239
- Price: 20,000 Ruud
Levelling the Mastery Errtel up

At NPC Adniel, option Mastery Errtel Level Up.
Material
- 1 Mastery Errtel
Elemental Rune- Zen
Optional
Elemental Talisman of Luck — +10% on any step
On failure the level drops by one.
| From | To | Chance (with Talisman of Luck) |
|---|---|---|
| 0 | 1 | 65% (+10%) |
| 1 | 2 | 65% (+10%) |
| 2 | 3 | 60% (+10%) |
| 3 | 4 | 60% (+10%) |
| 4 | 5 | 55% (+10%) |
| 5 | 6 | 50% (+10%) |
| 6 | 7 | 50% (+10%) |
| 7 | 8 | 45% (+10%) |
| 8 | 9 | 45% (+10%) |
| 9 | 10 | 30% (+10%) |