On each material's icon/picture, you will notice 2 things.
- The Stars; this tells you your mastery level. As your mastery level rises, the CP you can collect on each one will rise, as well as the Quality boost to each craft when hitting it with your Hammers.
- Under the stone, it will either say "MASTER", which means you have filled all 3 stars and have mastered the stone. Or there will be a yellow bar. If you put your mouse over this yellow bar, it will show you your progress until you have mastered that level/star.
Raising your mastery has a few advantages, the first one is that as your mastery of the material raises, so does the boost you give when hammering that material.
At 0 Mastery, you gain no bonus to your craft, and the maximum CP you can reach is 100. This may seem like a lot, but it is only a 10 boost to quality, and you can not attempt fusion at this level.
At 1 Mastery, you gain a +1 boost to quality as your mastery bonus, and the maximum CP you can reach is 150, which is a possible 15 boost to quality. You are also able to attempt Fusion now for almost all materials, the exception being Divine Metal
At 2 Mastery, you can a +3 boost to quality as your mastery bonus, and the maximum CP you can reach is 200, for a possible 20 boost to quality. Fusion on Divine Metal is now possible.
At 3 Mastery, you gain a +5 boost to quality as your mastery bonus , and the maximum CP is now 250. This allows you to possibly obtain a +25 boost to quality.
For rare metals, reaching level 2 Mastery also opens up Advanced Crafting.
However, most people judge their Mastery by the Stars on each material.
By default, all players start at 0 Stars.
To get to 1 Star & Level 1 Mastery, you have to hammer or craft up to 50 Mastery Points.
To get to 2 Star & Level 2 Mastery, you have to hammer or craft up to 150 Mastery Points.
To get to 3 Star & Level 3 Mastery, you have to hammer or craft up to 300 Mastery Points.