By 
Sigils provide enhanced attributes and stats for characters and, much like weapons, you can enhance them to make your characters more powerful. This guide breaks down how to upgrade your Sigils in Granblue Fantasy Relink to help you thrash foes.
How do I upgrade Sigils in Granblue Fantasy Relink?
Sigils are integral to taking on some of the most challenging post-game content. Outside of that, they can assist you as you go through the main story. However, these become extremely important as you tackle quests at the Quest Counter, as they provide essential passives that can supplement the abilities of your characters.
Players will unlock Sigils as they progress, and even obtain them in a variety of ways. You can read more about that here. But Sigils can also be upgraded, which will enhance the respective stat they boost. Keep in mind not all Sigils can be upgraded, but you can in fact stack Sigils of the same kind.
Upgrading Sigils will require you to head to a Blacksmith. You find one in Folca fairly early on. By speaking to the Blacksmith, you will see the option to upgrade your Sigils. From here you will be brought to a different screen where you can see what material requirements are necessary to enhance your Sigils.
Keep in mind that higher rank Sigils like Attack IV can be enhanced more than Attack I. Which means that you will need to invest more materials to see these them fully realized. But it is completely worth it, since these passives add quite a bit of power to your characters depending on ones selected.
Granblue Fantasy Relink is now available for the PS4, PS5, and PC.
