Lord Oaks is the Champion of the Forest Lord Spawn. He is about twice the size of an Ethereal Warrior.
The first time Lord Oaks is hit he will summon his queen with the words "Come forth my Queen". His queen, who is a giant Pixie named Silvani, will then appear next to him.
As long as his queen is alive, Lord Oaks will take very little damage from any attacks. It is possible to kill him without killing the queen first though, but it will take a LOT more damage to do so. Once the queen is dead he will be much easier to handle.
Once the queen has been summoned, there is a chance whenever Lord Oaks is hit, that she will summon a group of 4-6 Pixies on the attacker. The Pixies will immediately attack no matter what the karma level of the attacker is. Once the queen is dead Pixies will no longer be summoned.
Just as the normal Ethereal Warriors, Lord Oaks also has life, mana and stamina draining melee attacks, which makes it extremely difficulty for warriors to put up much of a fight. Pets will also be killed very fast if the tamer is not careful.
When Lord Oaks is killed in Felucca, a Scroll of Power will be placed in the backpack of some of the players who damaged him. Additionally one of those who damaged him will also get a "Skull of Enlightenment", which is one of the six skulls needed to summon the Harrower.
As with most of the creatures from the Forest Lord Spawn, you lose karma from killing Lord Oaks.