Intelligence

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.

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Memory and mental power. Improves spellcasting for wizards.

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— In-game ability description

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 can permanently increase a character's Intelligence score:

• Auntie Ethel's Hair: +1 to any chosen ability
• Mirror of Loss: +2 to any chosen ability, up to a maximum of 24
• Resilient: +1 to any chosen ability, up to a maximum of 20

Related items

Affecting Intelligence

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

Affecting saving throws

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

For githyanki characters only:

• Aberration Hunters' Amulet provides advantage on Intelligence saves
• Circlet of Psionic Revenge grants +1 to 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