Ancient Relic
The Ancient Relic is located inside the keep of Schwartzwald Castle. If it is destroyed, the last player who landed a hit on it takes control of the castle.
Being Light 1 element, poison, dark and earth attacks are particularly effective against the relic. Even though it is classified as a mechanical (and thus cannot be healed), it heals itself for a percentage of its own maximum health every 30 seconds.