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Intelligence is one of the six ability scores. It is the prime requisite of mages, and as such requires a score of 15 to dual-class from mage to another class and a score of 17 to dual-class from another class to mage.

Intelligence is especially important to mages, specialist mages, wild mages, and bards. Although sorcerers are commonly grouped with other wizards, they do not gain any special benefits from INT.

Gnomes have a +1 INT bonus, allowing them to start with 19 INT; Half-Orcs have a -2 INT penalty, limiting them to 16 INT at the start of the game.

EffectsEdit

Mages and Bards OnlyEdit

  • Maximum Spell Level: In the original Baldur's Gate and Shadows of Amn, INT determined the maximum spell level that the character may scribe; this restriction was removed in Throne of Bhaal and the Enhanced Editions.  This ranged from 4th level at 9 INT up to 9th level at 18 INT.
    • Note that this only applies to scribing, not casting. A wizard may temporarily boost their INT and scribe the desired scrolls; they will be able to memorize and cast that spell even when their INT returns to normal.
  • Known Spells per Level: INT determines the number of available wizard spells that a character may memorize per level. This ranges from 6 at 9 INT up to 99 at 19 INT.
    • Note that this only applies when the spell is to be scribed. A wizard may temporarily boost their INT and scribe as many scrolls as they are able to; they will still retain those in their mage book when their INT returns to normal.
  • Scribe Success Rate: INT determines the success rate of scribing scrolls.  This ranges from 35% at 9 INT up to 150% at 24 INT. 
    • Note that specialist mages will modify this percentage based on the school of magic that they are attempting to scribe; either a +15% bonus for spells of their favored school or a -15% penalty for all other schools.

All ClassesEdit

  • Wand/Scroll Usability: All wands and scrolls require 9 INT to use, regardless of their class restrictions.
  • Lore Bonus: INT adds a bonus to the character's base lore value, which wisdom also contributes to.  This ranges from -20 at 6 INT and below up to +40 at 25 INT.
  • Maze Duration: INT determines the amount of time that a character will be trapped by the 8th level wizard spell Maze (the higher the intelligence, the faster they solve the maze).  This ranges from 20d4 rounds at 3 INT and below down to 1d4 rounds at 18 INT and above.
  • Mind Flayer Resistance: Mind flayers temporarily drain 5 INT for 30 seconds on a successful hit (no save); if a character's INT is lowered to 0, they instantly die.  Thus, characters with high INT are better suited to combat them.
  • Dialog Checks: There are also a rare number of dialog choices that are only available when the party leader has high intelligence, but these are extremely minor and have no real effect on how quests progress.

Scores tableEdit

Note: Specialist Mages have a +15% bonus to scribing scrolls of their favored school; they also have a -15% penalty to scribing all other scrolls.
Intelligence Max Spell Level
Mages and Bards Only
Spells per Level
Mages and Bards Only
Scribe Success Rate
Mages and Bards Only
Lore modifier
1-6 -20
7 -10
8 -10
9 4th 6 35% -10
10 5th 7 40% 0
11 5th 7 45% 0
12 6th 7 50% 0
13 6th 9 55% 0
14 7th 9 60% 0
15 7th 11 65% +5 +3
BGEElogoglowlogoonly
This icon indicates content from all Enhanced Editions of the Baldur's Gate games.
16 8th 11 70% +5
17 8th 14 75% +7
18 9th 18 85% +10
19 9th 99 95% +12
20 9th 99 96% +15
21 9th 99 97% +20
22 9th 99 98% +25
23 9th 99 99% +30
24 9th 99 100%
BGnoglow1
Baldur's Gate (1998)
This icon indicates content from the original Baldur's Gate campaign.
Totsc icon
This icon indicates content from the original Baldur's Gate: Tales of the Sword Coast‎ campaign.
150% +35
25 9th 99 +40

Score Altering Edit

Permanent Boosts Edit

Temporary Alterations Edit

Potions Edit

Equipment Edit

Other Edit

External linksEdit