Intelligence

Secondary skills
Air Magic
Archery
Armorer
Artillery
Ballistics
Diplomacy
Eagle Eye
Earth Magic
Estates
Fire Magic
First Aid
Intelligence
Interference
Leadership
Learning
Logistics
Luck
Mysticism
Navigation
Necromancy
Offense
Pathfinding
Resistance
Scholar
Scouting
Sorcery
Tactics
Water Magic
Wisdom

Intelligence
	Basic Intelligence: Basic intelligence increases a hero's normal maximum spell points by 25%. (20% in Horn of the Abyss)
	Advanced Intelligence: Advanced intelligence increases a hero's normal maximum spell points by 50%. (35% in Horn of the Abyss)
	Expert Intelligence: Expert intelligence doubles a hero's normal maximum spell points. (50% in Horn of the Abyss)

Intelligence is one of the secondary skills. It increases the hero's maximum spell points depending on the level of the skill. Normal maximum spell points are ten times the knowledge skill, but at basic level of the intelligence skill they are increased by 25%, at advanced level by 50% and at expert level by 100%.

Heroes with (Basic) Intelligence as a starting skill:

•   Caitlin the Cleric
•   Daremyth the Wizard
•   Iona the Alchemist
•   Nagash the Necromancer
•   Sephinroth the Warlock
•   Eovacius the Navigator 

Heroes, having Intelligence as a specialty and a starting skill: The following heroes all receive a 5% per level bonus to their Intelligence skill:

•   Andra the Witch (Basic Intelligence)
•   Ayden the Heretic (Basic Intelligence)
•   Elleshar the Druid (Basic Intelligence)

Increased max mana per level with Intelligence specialty:

Basic	1,25%	1,00%
Advanced	2,50%	1,75%
Expert	5,00%	2,50%

Horn of the Abyss

In Horn of the Abyss , the skill percentages are decreased to 20%, 35%, and 50%.

Chance to get

Out of total 112 for Shadow of Death, and of (112 + Interference chance) for Horn of the Abyss .
Banned skills change the probability.

Town	Class	Chance to learn
Castle	Knight	1 (lowest)
Castle	Cleric	6
Rampart	Ranger	2
Rampart	Druid	7
Tower	Alchemist	4
Tower	Wizard	10 (highest)
Inferno	Demoniac	2
Inferno	Heretic	6
Necropolis	Death Knight	5
Necropolis	Necromancer	6
Dungeon	Overlord	1 (lowest)
Dungeon	Warlock	8
Stronghold	Barbarian	1 (lowest)
Stronghold	Battle Mage	5
Fortress	Beastmaster	1 (lowest)
Fortress	Witch	7
Conflux	Planeswalker	1 (lowest)
Conflux	Elementalist	8
Cove	Captain	3
Cove	Navigator	8
Factory	Mercenary	{{{21}}}
Factory	Artificer	{{{22}}}

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User commentary

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For a mostly magical hero, Intelligence is useful. The best time of Intelligence is mid-game, when getting e.g. 100 spell points instead of 50 may be crucial for a major battle. Horn of the Abyss  debuffs this skill and buffs Mysticism, possibly so as to balance them between each other. Don't forget to reload mana prior to major missions. Intelligence is a excellent supportive secondary skill. Especially in large and extra large maps, where heroes grow to be more "mighty and magical", the amount of mana points may become crucial. For example, resurrecting a large army can consume massive amount of mana points. Dungeon heroes may be able to pass Intelligence, because they typically have the opportunity to build Mana Vortex in their cities, which basically has the same effect as expert Intelligence – the spell point maximum is doubled. However, enormous spell points amount (4 times more than usual) can make a Warlock with Intelligence almost invincible.

See also:

• Secondary skills