ToE H5/HoF
Academy - Wizard

Disrupter

Specializes in Curse of Vulnerability so that the spell not only decreases the Defence of the target, but also inflicts damage. Damage inflicted depends on hero level.

Hero:

Flame Wielder

Effective Spellpower of the hero is increased when casting fire-based spells. Modifier depends on hero level.

Hero:

Golem Crafter

All Iron Golems, Steel Golems and Magnetic Golems in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Gremlin Master

All Gremlins, Master Gremlins and Saboteur Gremlins in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Master of Elements

Every time a friendly stack dies, a group of elementals enters combat at the hero's side. The number of elementals increases depending on hero level. In addition, Summon Elementals and Summon Phoenix spells cast by the hero are more powerful.

Hero:

Mentor

All Mages, Archmages and Battle Mages in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Mystic

Hero is able to restore mana in combat gradually by himself. Restoration speed depends on hero level.

Hero:

Spell Twister

The Spell Twister ability increases the chance that redirected enemy spells land on one of the enemy units instead of going in a random direction.

Hero:

Windspeaker

Hero's turns come faster in combat depending on hero level.

Hero:
Dungeon - Warlock

Black Hand

All Scouts, Assassins and Stalkers in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Blood Mistress

All Blood Maidens, Blood Furies and Blood Sisteres in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Catalyst

Empowered spells mana cost is reduced by 5% and + additional 1% per hero level.

Hero:

Coven Mistress

Shadow Witches, Shadow Matriarchs and Shadow Mistresses have a chance to make a free additional shot at the hero's current target. Chance increases depending on hero level.

Hero:

Dark Mystic

Dark Ritual ability is more powerful, enabling the hero to regenerate mana even beyond the normal max mana cap. Amount regenerated over the cap depends on hero level.

Hero:

Intimidate

Enemy units have penalty to Initiative, depending on hero level.

Hero:

Lizard Breeder

Specializes in Raiders. Raiders's special attack Lizard Bite deals more damage, depending on hero level.

Hero:

Master of Initiative

All creatures in hero's army get +1% to their Initiative and enemy creatures get -1% for their Initiative for every level of the hero.

Hero:

Poison Master

Enemy units may enter the combat already poisoned, chances depend on hero level.

Hero:

Shadow Dancer

Less damage is suffered from distant attacks, reduction depends on hero level.

Hero:

Slave Driver

All Minotaurs, Minotaur Guards and Minotaur Taskmasters in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:
Fortress - Runemage

Border Guard

Hero has a bonus to his Defense (+1 Defense for each 2 hero levels) if fights are one day away from owned city.

Hero:

Golden Tongue

Neutral creatures are more likely to join this hero. Moreover victories provide this hero with gold and resources.

Hero:

Keeper of the Flame

All Rune Priests, Rune Patriarchs and Rune Keepers in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level.

Hero:

King of the Stone Halls

All creatures in hero's army have "Rune of Thunderclap" effect permanently active (refreshes at the start of creature turn).

Hero:

Master of the Runes

With each level-up, the hero can spontaneously learn one more Runic Spell.

Hero:

Protector

All Defenders, Shieldguards and Mountain Guards in hero's army gain +1 to their Attack and Defense for every two levels, and +1 to their Hit Points for every five levels of the hero.

Hero:

Rider

All Bear Riders, Blackbear Riders and Whitebear Riders in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level.

Hero:

Rune Artist

Chances of success with Fine Rune feat are increased by 20% from the start and by +1% for every level.

Hero:

Sacred Hammer

Each time the hero casts a light magic spell on a friendly creature, there is a chance that the ‘Righteous Might' spell will be cast freely upon the affected unit.

Hero:

Sharp Blade

All Spearwielders, Skirmishers and Harpooners in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level.

Hero:

Stormcaller

Lightning-based spells of this hero are irresistible for the enemies (immunities and magic-proof still apply).

Hero:
Haven - Knight

Archer Commander

All Archers, Marksmen and Crossbowmen in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Beloved of the People

All Peasants, Conscripts and Brutes in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level. Also, all Peasants, Conscripts and Brutes in hero's army earn another +1 gold piece in kingdom treasury every day, in addition to their Tax Payer ability.

Hero:

Cavalry Commander

Cavaliers, Paladins and Champions in hero's army get additional jousting bonus as hero gains new levels. Hero's "Retaliation Strike" ability is more powerful.

Hero:

Dragonblessed

All creatures in hero's army get a Bless effect for the whole combat.

Hero:

Griffin Trainer

All Griffins, Imperial Griffins and Battle Griffins in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level. Griffins get Battle Dive Ability.

Hero:

Infantry Commander

All Footmen, Squires and Vindicators in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level.

Hero:

Paragon Knight

The effect of Benediction increases as hero gains new levels. Mana used for casting Light Magic spells are reduced by 1.

Hero:

Pathfinder

Hero's movement points are increased by 1% per every two hero level.

Hero:

Siege Engineer

Ballista receive +1 to their Attack for every level of the hero. Catapult's chance to hit the wall is increased by 2% for every hero level.

Hero:

Suzerain

Hero contributes 250 gold pieces in kingdom treasury per day. Hero has a 2% per level discount for troop training in Haven towns.

Hero:

Vessel Of Elrath

Each time the Hero casts any spell belonging to the school of Light magic, "Divine Vengeance" spell will also be cast on a random enemy stack that meets the criteria for being affected by Divine Vengeance (it has killed someone during the combat).

Hero:

Windrider

The effect of Haste spell is increased by 1% for every hero level.

Hero:
Inferno - Demon Lord

Aura of Swiftness

The Initiative of all creatures in hero's army is increased by 1% per hero level.

Hero:

Chosen of Chaos

Luck of all hero's troops is increased by 1. Also, enemy hero can not use Tactics ability in combat.

Hero:

Gate Keeper

The number of creatures called through the Gating increases by 1% per hero level.

Hero:

Hound Master

All Hell Hounds, Cerberi and Firehounds in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Iron Maiden

Ballista's shots under hero's command achieves fireball effect. Spell power of this fireball increases by +1 for every five hero's level.

Hero:

Mindreaver

The Confusion spell has an additional effect of decreasing target's mana by one point per every hero level.

Hero:

Rusher

Hero's movement points are increased by 5% instantly and by + 1% per every four level. The cost of Teleport spell is reduced by half.

Hero:

Spellbreaker

All creatures in hero's army gain 5% Magic Resistance and + 1% per hero level.

Hero:

Temptress

All Succubi, Succubus Mistresses and Succubus Seducers in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:
Necropolis - Necromancer

Avatar Of Death

The Hero can summon a mysterious creature upon the battlefield to fight on his side. The creature's power depends on the Hero's level. If this creature dies, the Hero will lose all his Mana points.

Hero:

Banshee

The effect of Banshee Howl ability increases as hero gains new levels.

Hero:

Death Lord

All neutral undead creatures will join hero's army. The number joining army is 50% of initial number + 2% per hero level.

Hero:

Embalmer

The First Aid Tent will heal 5 more hit points per hero level. The damage in case of Plague Tent ability is also increased.

Hero:

Reanimator

The Raise Dead spell has increased effect. The spellpower of this spell is increased by +1 for every five levels of hero, starting on first level.

Hero:

Souldrinker

The Curse of Weakness spell not only lowers creature's damage, but also reduces creature's Defense by -1 for every three levels of the hero, starting on first level.

Hero:

Soulhunter

Every time a group of enemy creatures dies it is replaced by a group of friendly Ghosts for the duration of the combat. The number of Ghosts depends on hero's level.

Hero:

Spellwringer

If enemy hero casts any spell, it can be blocked in his or her spellbook making it impossible to cast that spell again in this combat. The probability of blocking increases as hero gains new levels. The higher the spell's circle, the harder it is to block it.

Hero:

Vampire Princess

All Vampires, Vampire Lords and Vampire Princes in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Zombie Lord

All Zombies, Plague Zombies and Rot Zombies in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:
Stronghold - Barbarian

Blade of the Khan

Slayers, Executioners and Chieftains in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level.

Hero:

Blood Drinker

Each killed enemy troop (summoned troops considered, too) increase the Attack of all the creatures in his army by +1 for each 6 levels of the hero.

Hero:

Centaur Commander

Centaurs, Centaur Nomads and Centaur Marauders in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level. Moreover they get +1% to their starting initiative for every level of the hero.

Hero:

Demon Hunter

If any demonic troops are present in combat, creatures in hero's army gain Demonic Rage more quickly.

Hero:

Fist of the Khan

Warriors, Maulers and Warmongers in hero's army gain +1 to their Attack and Defense for every two levels of the hero, starting on first level.

Hero:

Goblin King

The number of Goblins in the hero's army increases weekly by an amount equal to the hero's level. The joining goblins will not be upgraded unless there already are upgraded Goblins in the army, and all upgraded Goblins will be joined by with a priority to Goblin Trappers. Also, the Goblin's chance to betray the hero will be reduced by 1% per hero level.

Hero:

Pounder

This hero can perform one special melee attack right at the beginning of combat. Moreover, all hero's attacks deal +5% damage for every level of the hero.

Hero:

Tracker

Increases the number of hero's movement points by 1% for every three level of the hero. Reduces a movement penalty from foreign terrain by 2% for every level of the hero.

Hero:

Warchief

All warcries cost less mana and grant more rage points depending on the hero's level.

Hero:

Wyvern Tamer

Wyverns, Foul Wyverns and Paokais in hero's army gain +1 +2 to their Hit Points for every two level of the hero, starting on first level.

Hero:
Sylvan - Ranger

Battle-Hardened

All experience that hero gains after battles is increased by 2% per hero level.

Hero:

Blade Master

All Blade Dancers, War Dancers and Wind Dancers in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Elven Fury

Blade Dancers, Hunters, and Druids (as well as their upgrades) get Enraged ability.

Hero:

Master of the Hunt

All Hunters, Master Hunters and Arcane Archers in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:

Storm of Arrows

Arrow barrage of the enemy ranks at the start of every battle, total damage depends on hero level. (Applies to Sylvan ranged units only).

Hero:

Swarm Queen

Wasp Swarm spell is more effective depending on hero level.

Hero:

Swift Striker

Creature's in hero's army have a +0.5% +1% per hero level bonus to their initiative at the start of combat.

Hero:

Sword of Sylanna

All Sylvan creatures under hero's command inflict +2% more damage to favoured enemy for every hero's level

Hero:

Unicorn Maiden

All Unicorns, Silver Unicorns and Pristine Unicorn in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Hero:
This information comes from the Heroes V release version (v3.0).

Thanks to sfidanza for creating the Heroes V skills and abilities pages!
Thanks to Valeriy for image optimisation!