From Guild Wars Wiki
- Concise description
Spell. The spirit of Archemorus is called forth dealing [sic] to all opponents within the Spear of Archemorus' danger zone.
- If enough creatures die when fighting the Luxons at the beginning of Boreas Seabed, the Spear of Archemorus will use this skill to knock down and deal 300 damage to your party and allies. To avoid this, do not fight near the Spear of Archemorus.
- If the party hesitates too long near the Spear of Archemorus without picking it up after the intermediate cinematic, the spear will use this skill at intervals even if there are no creatures dying in range.