Paladin
Level 4 Holy Light: [Blessing of Wisdom] Casting Holy Light on an enemy unit will heal the Paladin. Casting Holy Light on a friendly unit will grant them a Level 1 Holy Light permanently.
Level 4 Divine Shield: [Blessing of Protection] Casting Divine Shield also grants Divine Shield to all friendly units at melee range from the Paladin.
Level 4 Devotion Aura: [Blessing of Kings] Units affected by Devotion Aura deal damage equal to their amount of current armor to attackers. Affected heroes have increased attributes.
Level 2 Resurrection: [Absolution] 3.5 seconds after casting Ressurrection, brings 3 additional corpses back to life. Every 6th Holy Light cast will cast Ressurrection for a single nearby corpse.
Blademaster
Level 4 Wind Walk: [Marked for Death] Casting Wind Walk reveals all enemy units in the map with less than 25% hit points. Attacking from Wind Walk instantly kills units with less than 15% of their maximum hit points.
Level 4 Mirror Image: [Blade Dancer] Right-Clicking a nearby illusion makes the Blademaster and the targeted illusion to swap positions instantly. Any illusions damaged by this Blademaster will be instantly destroyed.
Level 4 Critical Strike: [Shogun] Increased chance to critical Strike, and every 3rd Critical Strike will permanently increase the base damage of a friendly nearby unit by 3.
Level 2 Bladestorm: [Weather Report] Bladestorm also causes all your Mirror Image illusions to cast Bladestorm for full damage. The damage does not stack, the illusions are invulnerable while casting and then vanish after finishing.
Death Knight
Level 4 Death Coil: [Deadliest Coil] Casting Death Coil at close range causes the projectile to bounce to a near unit, except the main target or the Death Knight itself.
Casting Death Coil at long range launches a secondary projectile that slowly moves towards the target position, blighting the area upon impact, healing friendly undead units and damaging enemy units.
Level 4 Death Pact: [Apocalypse] Death Pact also creates an Animate Dead version of the target, which is invulnerable and has boosted movement speed. Passively damages a random enemy unit whenever a near friendly unit dies.
Level 4 Unholy Aura: [Death’s Advance] Stunned, rooted, slowed, ensnared and impeded friendly units affected by this aura have chance when attacked to be cleansed from all crowd-control effects. |n Also grants bonus hit points and bonus damage against buildings to all “riding” friendly units in the map.
Level 2 Animate Dead: [Army of the Dead] Animate Dead also summons 6 random undead units(including neutral and campaign units, and a penguin). Non-neutral units have unlimited duration.
Demon Hunter
Level 4 Mana Burn: [Mage Hunter] Also silences the target. However, if immolation is active, Mana Burn will instead bounce to 2 nearby enemy units.
Level 4 Immolation: [Overheat] Area of effect increased by 250%. Attacking enemies while immolation is active burns mana from the target if it has any mana, and deals extra damage.
Level 4 Evasion: [Aura of Darkness] The Demon Hunter now has an aura that gives Evasion friendly nearby units.
Level 2 Metamorphosis: [Inner Demon] The Demon Hunter explodes both at the beginning and end of Metamorphosis. Mana Burn and Immolation are upgraded while transformed!
Alchemist
Level 4 Healing Spray: [Transmutation Circle] Healing Spray also summons a Transmutation Circle on the ground. Allied heroes that interact with it receive a random rune!
Level 4 Chemical Rage: [Atomic Rage] Explodes when cast, dealing damage to nearby enemies. While Transformed, Acid Bomb cooldown is removed and the Alchemist has Chaos damage.
Level 4 Acid Bomb: [Better Living through Chemistry] Whenever the Alchemist cast Acid Bomb, it gains a random potion(as an ability) to drink.
Level 2 Transmutation: [Equivalent Exchange] Transmutation target’s owner lose resources when the unit is transmutated!