Epic Passive

Some Epic Heroes have a trait that is accompanied with their Epic. 

Many Legendary Heroes have a trait that becomes improved by their Epic. At times, Gold Heroes may receive a new trait once they become Epic.

Epic Passives

Hero	Epic	Trait	Epic trait description
Cruel King Bramble			Goblin allies attack a random enemy on CRIT. Goblin allies attack a random enemy when Bramble lands a CRIT. (This trait replaces Critical Goblin Odor when Bramble's Epic is unlocked.)
High King Valkin			All allies will follow-up any attack made by this Hero with a basic attack. (This trait replaces the trait 'Lead By Example' when the Epic is unlocked. It makes non-Dwarven allies do follow-up attacks, too.)
IGOROK			Self and allies deal boosted damage against Frozen targets and Lifesteal a % of the damage dealt when attacking Frozen targets.
Jin Lei			All allies gain 25% Damage Reduction and gain +1 Energy whenever they deal damage to a shocked enemy. Honorbound allies gain double this effect and chance to shock on CRIT. (This trait replaces the trait 'Veil of Voltage' when the Epic is unlocked.)
Lord Zomm			Summons up to 3 Zomminions if there are dead allies at the start of Zomm's turn, and Zomminions can attack right after being summoned. This ability replaces From the Grave III.
The Furnace			Allies gain a 15% damage reduction from attacks. Armored allies gain 15% extra damage reduction. (This trait replaces 'Dwarven Forged Team' when the The Furnace' Epic is unlocked.)
Pontifex Mortis			All allies deal 25% additional damage. Arcane allies deal 50% damage and gain +1 Energy on kill. (This trait replaces the trait 'Arcane Assault' when the Pontifex' Epic is unlocked.)
Aria			Allies gain 25% reduced damage from melee attacks. Assassin allies gain another 25% damage reduction from melee attacks. Enemies deal 25% less damage when Dazed, Paralysed or Off-balance. Also, Aria's Epic gives a chance to deal 4x damage on a counter. (This trait replaces 'Acrobatic Technique' when the Epic is unlocked.)
Jumbeaux			Allies heal at the end of the round for each stack of Growth on this character. Plant allies also heal for each stack of Growth. (This trait replaces 'Rapid Regrowth' when the Epic is unlocked.)
Archon			Allied warriors gain 100% chance to apply Impair debuff on hit (This trait replaces 'Combat Prowess' when the Epic is unlocked.)
Reyla the Lightbringer			All allies take 25% reduced damage from Basic and Epic attacks. Ranged allies gain double this bonus. (This trait replaces 'Darting Defense' when the Epic is unlocked.)
Dhaegon Stonecrusher			Allies gain 25% damage penatration. Dwarves gain 10% chaos damage.
Emperor Zulkodd			Cleanses 3 Debuffs on all Demon and Fire allies at the start of this Hero's turn.
Malice			As long this hero is alive, all non-Demon heroes (enemies and allies!) lose 1 Energy on each enemy death. (This trait is added when the Epic is unlocked.)
Agnon			Boosted Damage (3x) against Stoned (petrified) targets. Stoned targets are statues that have an highly increased DEF stat.