Skill learning is some latest new feature for CoG. Here are the basics:
At this moment, all Skills are passive, they affect the units the hero leads and are triggered at all times. We may add more dynamic Skills later.
Each hero can learn a maximum of four Skills. Some higher-grade (color) heroes come with one or two Skills. You can teach your heroes new Skills. To do this you need a Skill Tome. Skill Tomes can be found by defeating Dungeon Bosses (the more advanced Dungeon Bosses will drop better Tomes), Wheel of Fortune, and Treasure Chests (Tomes 1 – 2, 1 – 4 and 2 – 5 for Bronze, Silver and Golden Treasure Chests respectively). You can also buy Level I Tomes at the Shop using Silver.
To learn a new Skill, you must have the right Tome. If your hero has never learned the skill of Valor forexample, you need a Tome of Valor I before you can teach your hero Tome of Valor II and III. You must learn the more basic Skills before learning the advanced ones.
To learn a Skill, go to the Skills Master in your main city (Arthlan/Sanctaria/Necrolis). The Skills Master is in the same building as the Transmutation Master and the Gem Socketeer. The name of the building is Ironbark Forge/Ironforge/Ironbones Forge.
There is a success rate for learning skills. Level I Skill Tomes will have a 100% success rate when learning but Level II and above will have successfully lower success rates. You can increase your success rate by using Inspiring Light:
To use Inspiring Light, you’ll need to have purchased it from the Shop beforehand:
You can unlearn a Skill by clicking on the “X” button next to the Skill: