Shadow Stone Necklace

From the Dark Towers quest introduced in the Mired Hearts event.

Shadow Stone Necklace
Value: 6,000 40 Burden Units
The focus of the Consumed Wraith's power, the Shadow Stone crackles with abyssal energy. Your Base Arcane Lore must be at least 225 to wield this item. Casts the following spells: Battlemage's Boon, Hydra's Head Activation Requirements: Arcane Lore: 225 Spellcraft: 500. Mana: 800 Mana Cost: 1 point per 30 seconds.