Rare items are a step-up from Magic items providing one additional modifier.
Rare items are only really useful in the very early game or to break down for crafting materials for item upgrades at the Blacksmith
Diablo 4 Item Tiers
The tiers of items progress as follows.
- Normal: 1 modifier
- Magic: 1 random modifier
- Rare: 2 extra random modifiers
- Unique: Fixed affixes, class-specific
- Legendary: 2 random modifiers and 1 Legendary modifier.
- Set Item: Unknown
- Ancient Set: Unknown