There are four attributes when it comes to Runes. They can boost recovery, DEF, DMG and abilities. Each attribute has 8 stages, each consisting of 10 ability points. Abilities can be activated using rune crystals of varying ranks.

There is a chance of failure, but the rate of success can be increased by using more Rune Crystals.

How to acquire Rune Crystals: 1. Monster Loot; 2. Dungeons; 3. Purchase chests at the Mall.

Recommended order to upgrade runes:

Upgrade the first group of red runes first and, depending on your need, upgrade the fourth group of yellow runes.