Headband of Intellect

Wondrous Item, major, uncommon (requires attunement)

• Properties: Requires Attunement
• Cost: ⏤
• Weight: ⏤

Your Intelligence score is 19 while you wear this headband. It has no effect on you if your Intelligence is already 19 or higher without it.

Source: Dungeon Master’s Guide p. 173. Available in the SRD and the Basic Rules.