Spell Badges are collectible trophies, one for each attack spell in the game. Collecting copies of a badge and using it lets you permanently upgrade that specific spell's damage on your character – no crafting, no consuming the upgrade over time, it's a one-time boost per level that stays forever.

1. Every attack spell has its own matching badge (e.g. the Berserk Badge upgrades the Berserk spell).
2. The easiest way to get a badge is the Mysterious Spell Badge – use it and it reveals one random badge from the full set.
3. You can also find or trade for a specific badge directly if you want to focus on one spell.

1. Use a badge (right-click → Use) to try to upgrade the spell it belongs to.
2. The cost increases with each level: level 1 costs 1 badge, level 2 costs 2 more, level 3 costs 3 more, and so on, up to level 10.
3. Each level adds +10% damage, always calculated from the spell's original base damage – the bonuses don't stack on top of each other, so level 2 is always +20%, never "level 1's bonus, plus 10% more".
4. You'll only be offered the upgrade if your vocation can actually cast that spell, and if you have enough badges – using the badge without enough copies just tells you how many more you need, nothing is spent.
5. Before anything is consumed, you'll get a confirmation window showing the exact cost and the resulting bonus, so you can back out with no loss.