Diablo 4 item upgrading Upgrades
Best item upgrade upgrade; his comment is here, upgrades are upgrade components that can be slotted into weapons, armor and trinkets to give a bonus. They usually come at an increased cost and require that the item upgrader be at an appropriate level.
Items with very high requirements typically don't see much value in being upgraded. This is especially the case for items like eth Titans that do not have a lot of variation.
Glyphs
After reaching the 50th level in Diablo 4, Blizzard's action RPG changes its focus from its simplified campaign into the final phase. This is when things really begin to change, with players being pushed into the Paragon Board leveling system, Nightmare Dungeons and new grinds that ensure their character's build is as strong as possible.
Glyphs play a significant role to this process. Glyphs' stats and affect radius on the Paragon Board are boosted by increasing their upgrade level.