Can Cause Fear: This unit frightens all enemy units, reducing their leadership when nearby. It is also immune to fear. Fear penalties do not stack.
Can Cause Terror: This unit can cause terror, making its melee target rout for a short time. Units that cause terror are immune to terror and fear themselves.
Encourage: This unit provides a leadership bonus to nearby allies. Units within range of both the Lord's aura and an encouraging unit will receive the larger of the two bonuses.
Vanguard Deployment: This unit can deploy outside the deployment zone.
Hide (forest): This unit can hide in forests until enemy units get too close.
Unbreakable: This unit does not suffer any form of leadership loss and will never rout.
However while he is present, the Green cannot be assassinated/wounded through hero actions, or killed in battle. His strength and ethereal ability make him quite powerful.
The Green Knight is the holder of secrets and keeper of the way, whose strength is the quester's ultimate test. He is a well-known figure of Bretonnian folklore, stories and poems about him being amongst the most popular in the Kingdom. A common character in puppet shows and plays performed for peasants and Kings alike, the Knight is bedecked in strange, ivy-covered armour and intones his famous line "None shall pass!". The traditional nemesis of the valiant Questing Knights of these tales, the Green Knight challenges them to duels so that they might prove their worth to the Lady, and thus sip from the blessed Grail. However, most folk do not realise that these stories are bound in fact; the Green Knight is the sacred protector of Bretonnia, and his spirit-essence is intertwined with the land and the Lady of the Lake herself. He has appeared to many Questing Knights throughout history, who subsequently spoke of the sky clouding over with the darkness of twilight and a green mist seeping from the earth, slowly taking the shape of a figure riding a snorting steed. Then the Green Knight appears, brandishing a glowing blade, his eyes ablaze with fey light!
↑Ethereal: Ethereal units ignore most damage done by non-magical weapons. As they have shed most of their physical form, they are not slowed by terrain-based movement penalties either.
↑Melee Expert: Melee Experts might have a very strong melee attack or melee defence, or high values in both. Some also have melee-focused skills like Charge Defence. Use them to counter other strong melee units. When facing them, it is best to take them out before they can enter melee.
↑Causes Terror: This unit can cause terror, making its melee target rout for a short time. Units that cause terror are immune to terror and fear themselves.
With 75% Physical resistance and the ability to heal when in forest, the Green Knight is a fearsome combatant and an incredibly tanky one. Not to forget that he is unbreakable. His horse also allows him to catch the targets he wants to catch and engage with enemy lords and heroes. The Dolorous Blade gives him a decent damage boost. That being said, magic damage will reduce his survivability significantly, so be wary.
Every Ethereal unit has a base physical resistance of 75%, but the Green Knight has a base of 55%. This is then bolstered by 20% from Blessing of the Lady (which is impossible for The Green Knight to deactivate because it requires leadership to be broke but the knight is unbreakable).