Draugr
Two wrongs don't make a wight.

Arcane: Forest
Base Rarity: Rare
Troop Type: Undead, Elf
Troop Role: Generator
Troop Id: K44_00 / 6710
Max skills: 16    14    26    0
Kingdom: Silver Necropolis
Kingdom Id: 3066
Trait #1: Deep Strength
Gain 7 Attack when attacking Delves.
Trait #2: Accursed
All enemies lose 2 random Skill points.
Trait #3: Undying
Immune to Poison, Disease, and Death Mark.
Spell: Necrosis
Description: Drain up to 12 Mana from an Enemy. Create Purple Gems equal to the Mana drained. [1:1]
Mana Color: Green, Brown
Mana Cost: 14
Spell Id: 8068