Better Affix Potential:

High-quality items often come with additional affix slots or unique affixes, allowing for Diablo 4 Items more powerful combinations when tempered.

Greater Durability:

Legendary and Unique items often feature higher Tempering Durability, meaning you can apply more rerolls and upgrades without exhausting their potential.

Unlock Greater Affixes:

Higher-tier items (especially in World Tier 3 and above) can roll Greater Affixes, which amplify skills and stats beyond the limits of cheap Diablo 4 Items lower-quality gear.