He killed the last living eaglephant to get that helmet.

Arcane: Dark
Base Rarity: Epic
Troop Type: Undead, Mystic
Troop Role: Warmaster
Troop Id: K09_04 / 6111
Max skills: 17    12    32    0
Kingdom: Khetar
Kingdom Id: 3020
Trait #1: Undying
Immune to Poison, Disease, and Death Mark.
Trait #2: Necromancy
Gain 50% bonus Souls from battle.
Trait #3: Magic Link
Gain bonus Purple Mana from Purple Gem matches.
Spell: Finger of Death
Description: Transform a selected Mana Gem into a Skull. If there are 13 or more Purple gems on the board, gain 6 Mana.
Mana Color: Red, Purple
Mana Cost: 6
Spell Id: 7181