The Wicker Man was a magical creation from Marvel comics and an enemy of the Black Knight - though in reality it was more of a tool than a truly sentient being.
The Wicker Man was a giant humanoid figure contstructed out of wicker, in which people and/or animals were placed, and then set on fire. This may have been done as punishment for the foulest criminals, as was done by the ancient Celts, or as sacrifices to bloodthirsty gods, as was done by the Druid sects.
In London, Morgan and Mordred cast a spell sweeping up a mob of people who had gathered below. The people were contained within a Wicker Man of magical energy, which Morgan then set against her enemies: the Black Knight (Dane Whitman's body inhabited by Sir Percy), Dr. Strange, and the Valkyrie. Strange uleashed a spell at the Wicker Man, but recalled it—at much pain to himself—when he realized it would harm those inside. The Black Knight attacked it, but it grasped his sword, drew on its power fired an energy blast that incapacitated all three of its opponents. Strange and the Valkyrie were imprisoned within the Wicker Man while Sir Percy was forced to swear allegiance to Morgan and Mordred at the threat of the deaths of all within the Wicker Man.
Percy was bound by honor to carry out his oath, but Dane Whitman was bound by no such oath. Realizing this, Sir Percy removed his helmet, restoring Dane Whitman's mind and control. Swiftly, Dane thrust the Ebony Blade into the Wicker Man's head. Whitman wasnearly overcome by the magical energies released, but the spirit of Sir Percy merged with the Ebony Blade, allowing him to tolerate them. The Wicker Man then dissipated, freeing all those trapped within. The Black Knight then used the energies absorbed by his sword to drive off Morgan and Mordred, forcing them back into the Astral Realm from which they had escaped.
Powers and Abilities
The original Wicker Man (Men) served merely as a prison/container, which could then be set on fire to immolate those trapped within it.
The creation of Morgan le Fay was composed of magical energy and was a mobile creature of destruction. It drew demonic life by sapping the life force of those trapped within it. In addition to possessing vastly superhuman strength, it could tap into other sources of magic and project destructive beams of energy from its eyes. It also served as a prison, and attacks against the Wicker Man could injure, or even kill, those within it.