Guilt and Pride

Even though leveling up has always been Arthur's fastest way to raise his mana, unrestricted by the tier or species of the monster he killed, it still couldn't compare to his Absorb rune in terms of efficacy. However, with Legacy Points added to the equation, leveling up became more important. 

He spent the night going through his Legacy Inheritance. Studying each category and learning what he can buy from them. There were six things he currently had access to. 

[Artifacts.] 

[Potions.] 

[Knowledge.] 

[Arts.] 

[Skills.] 

[Runes.]

Artifacts were as their names implied, physical items that were engraved with runes. Arthur didn't need to understand the runes to use them and can simply purchase them to help him like the Dome's Key.