Epic Bosses

Epic Bosses are Bosses that appear for a full week each before being replaced by the next Epic Boss. Each starts out weak, but gain power with each time you defeat them. Fighting them uses Epic Energy, which refills on its own or can be purchased with gems, similarly to Arena energy. Defeating the boss 15 times within the week will give you enough materials to craft their Epic Boss Armors, and beating them 43 times will allow you to craft the armor again (preferably the "plus" version). In order for an Epic Boss to be summoned, you must fight in the Story Mode locations. The boss will be summoned after a few battles.

Beginning with Admiral Hateheart, the epic bosses received new reward tracks. Hateheart also introduced a new system of leveling in the epic boss fights. Boss defeats are counted, and defeats 1, 3, 6, 10, 15, 21, 28, 35, 43, 51 and 60 give prizes. Every epic boss fight begins with all of your knights at full health, and damage to your knights from the fights does not affect your knights on the map. Once summoned, the boss will stay around for 2 hours or until killed, allowing the player to come back and finish it off in multiple fights if needed.

Prior to Admiral Hateheart, the same knights were used for both Epic Boss fights and normal fights. This meant that players had to avoid fighting on the map if they wanted their knights to be at full hit points when attacking the Epic Boss. Also, the boss vanished immediately if the player lost the fight.

Starting with Magician, Epic Bosses now give Epic Armor as a reward armor. Previously, they would give Legendary Armor.

Epic Boss Stats
Admiral Hateheart Generation
 * 20. Admiral Hateheart - boss stats reduced & new reward system
 * 26. Twin Jian (May 22, 2013) - double the normal attack & defense, double rewards

Deva Generation

 * 30. Deva (June 19, 2013) - first of the new higher attack values. All of the bosses after it have Deva-level stats unless otherwise noted.

Nian Generation

 * 63. Nian (January 30, 2014) - first of still higher Epic Boss stats. All of the bosses after it have Nian-level stats unless otherwise noted.

Magician Generation

 * 124. Magician (March 31, 2015) - first epic boss that drops material to craft epic armor.

Dragonkin Boss Collection

 * 131. Ignus is 2% stronger than the Magician generation
 * 132. Ventus is 2% stronger than Ignus.
 * 133. Terrah is 4% stronger than Ventus.
 * 134. Umbra is 4% stronger than Terrah, making it about 12% stronger than the Magician generation.

Boss Collections
Boss Collections features events that were centered around several Epic Bosses at once and had the player collect Armors from each to receive a special prize at the end. Epic Boss which are featured in Boss Collections has higher stats than other epic bosses. A frequently asked question about 'Epic Boss Collections' is about keeping both the regular and the plus version to receive both rewards. A player only needs to keep the plus versions of the armors in their inventory in order to receive BOTH rewards of the event.

Ancient Dragons Beast Brawl I Boss Collection Beast Brawl II Boss Collection Night Watcher Boss Collection Winter Kings Creepy Crawlers Horsemen Celestial Dragons Halloween Winter Knightmare The Dragonkin Warlords The Dark Royals
 * 32. Ancient Dragon Eurus (July 3, 2013) - base stats
 * 33. Ancient Dragon Boreas (July 10, 2013) - 2% higher defense than Eurus
 * 34. Ancient Dragon Notus (July 18, 2013) - 5% higher defense than Eurus
 * 35. Ancient Dragon Phyrus (July 25, 2013) - 10% higher defense than Eurus
 * 41. Corvus (August 29, 2013) - base stats
 * 42. Troll King (September 5, 2013) - 15% higher attack than Corvus
 * 43. Ice Lich (September 12, 2013) - base stats
 * 44. Ember Lizard (September 18, 2013) - 10% higher attack than Ice Lich
 * 45. Beringar (September 25, 2013) - 20% higher attack than Ice Lich
 * 48. Fenris (October 17, 2013)
 * 49. Circe (October 24, 2013)
 * 50. Headless Horseman (October 31, 2013)
 * 56. Jack Frost (December 12, 2013) - 5% higher stats than regular Epic Bosses after Level 15
 * 57. Krampus (December 19, 2013) - 10% higher stats than regular Epic Bosses after Level 15
 * 58. Glacius (December 26, 2013) - 20% higher stats than regular Epic Bosses after Level 15
 * 70. Firewing Wasp (19 Mar 2014) - normal Nian generation stats
 * 71. Vermax (26 Mar 2014) - 10% higher stats than Firewing Wasp starting level 19
 * 72. Araknos (2 Apr 2014) - 5% higher stats than Vermax on all levels
 * 75. Pestilence (22 Apr 2014)
 * 76. War (30 Apr 2014)
 * 77. Famine (6 May 2014)
 * 78. Death (13 May 2014)
 * 87. Cosmos Dragon (15 Jul 2014) 2% More Defense and Attack than Regular Epic Boss stats
 * 88. Selene Dragon  (22 Jul 2014)
 * 89. Astrea Dragon (29 Jul 2014)
 * 90. Titan Dragon  (5 Aug 2014)
 * 99. The Bride (Oct 7, 2014)
 * 100. Alucard (Oct 14, 2014)
 * 101. Crypt Walker (Oct 21, 2014)
 * 102. Boogeyman (Oct 28, 2014)
 * 107. Kodiak (Dec 2, 2014)
 * 108. Thunderhoof (Dec 9, 2014)
 * 109. Emperor Tux (Dec 16, 2014)
 * 110. Santa (Dec 23, 2014)
 * 131. Ignus (May 19, 2015)
 * 132. Ventus (May 26, 2015)
 * 133. Terrah (June 3, 2015)
 * 134. Umbra (June 10, 2015)
 * 139. Dark Ripper (July 14, 2015)
 * 140. Dark Baroness (July 21, 2015)
 * 141. Dark Count (July 28, 2015)
 * 142. Dark Duchess (August 5, 2015)