Intelligence

Memory and mental power.

Intelligence is an ability score and the primary ability of wizards.

Intelligence affects your Arcana, History, Investigation, Nature, and Religion skills. It also improves spellcasting for wizards, fighters (especially valuable for Eldritch Knights), and rogues (especially valuable for Arcane Tricksters), by increasing the chance of hitting an enemy with spell attack rolls, due to the increased Difficulty Class of spells with saving throws.

Intelligence modifier chart

Baldur's Gate 3 uses the Point Buy ruleset.

Ability score modifier chart

Ability score	Modifier value		Ability score	Modifier value
1	-5		16-17	+3
2-3	-4		18-19	+4
4-5	-3		20-21	+5
6-7	-2		22-23	+6
8-9	-1		24-25	+7
10-11	+0		26-27	+8
12-13	+1		28-29	+9
14-15	+2		30	+10

Ways to increase

The following sources permanently increase a character's Intelligence score:

• Auntie Ethel's Hair can permanently increase Intelligence by +1
• The Mirror of Loss permanently increases any chosen ability score by +2 (up to 24)
• The Resilient feat permanently increases any chosen ability score by +1

Related items

Affecting Intelligence

• Warped Headband of Intellect sets Intelligence to 17
• Harmonium Halberd reduces Intelligence by -1
• Devilfoil Mask reduces Intelligence by -1 per nearby creature also wearing a mask

Affecting Saving Throws

• Cerebral Citadel Armour grants +1 to Intelligence saves
• Fey Semblance Amulet provides advantage on Intelligence saves

For githyanki characters only:

• Circlet of Psionic Revenge grants +1 to Intelligence saves
• Aberration Hunters' Amulet provides advantage on Intelligence saves
• Silver Sword of the Astral Plane provides advantage on Intelligence saves

Benefiting from Intelligence

• The Pointy Hat grants a bonus to Persuasion ability checks equal to the wearer's Intelligence modifier