Lord Foul the Despiser is the primary antagonist of The Chronicles of Thomas Covenant. An ancient and seemingly immortal being, he traveled the universe planting evil powers said to be capable of tearing planets apart so that later beings would find them and destroy themselves until the Creator was able to defeat him, and establish the Arch of Time to seal him away in The Land, a single continent. Foul possesses incredibly powerful magical abilities, enough that at full power, direct combat against him would likely cause enough damage to destroy the world. In addition to using his powers for direct destructive means, Foul and those he empowers have used a variety of indirect abilities including manipulating the weather, resurrecting shades of the dead, and summoning creatures that induce extreme fear in all who witness them, though these abilities generally require time to use.
Foul has an inherent power over the undead, able to perfectly enslave any who violate the Law of Death. In addition, his nature as equal and opposite to the Creator means that he cannot be defeated by any power not guided by free will, and attempts to carry artifacts containing mere fractions of his power inevitably corrupt the bearers into serving his will. Though he is apparently immortal, sufficient force directed against him or he himself utilizing all the power at his disposal can nonetheless leave him powerless for many centuries at a time.
(Sorry for the repeat pic. Lord Foul simply does not have any other pictures that I could find.)
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