Symbols in Skyforge are one of the many ways you can customize your character and really increase their power on the battlefield. You will start off with 3 symbol slots and you can unlock 2 additional slots each time you master a class. To master a class you must unlock all of the major nodes within the class tree (ability/talent nodes) , once everything is unlocked you will get a star next to that classes picture(seen above) and you will unlock two additional symbol slots. Unlike abilities and talents symbols are only unlocked from the Ascension Atlas by using sparks of destruction, creation, and balance.
Once you’ve read through symbols and started unlocking more than you have room for you’re really going to understand how much impact they have on your character. So keep in mind that even though it’s fun to play every class and you might enjoy rotating through them all try to stick with one and master it so that you can use more symbols, it can only help!