When all 4 statues inside the castle have been destroyed, the shield blocking the entrance into the Dragon Tower vanishes.
Only the players of the defending team can enter through the shield.
Recover HP/MP/AG around the guardian statue and the recovery rate can be upgraded up to a maximum of 3 stages.
The Guardian statues have defensive power/durability (HP) and can only be attacked during the siege. Weapon durability is greatly reduced when attacking the Guardian statues, therefore it is strongly advised to take a Potion of Bless or Soul before attacking.
Guardian statues can be upgraded up to a maximum of 3 stages of defensive power and durability. (upgrading and restoring is not possible during the battle)
Destroy 4 Guardian statues to proceed to the Dragon tower.