((I figured I should PROBABLY do this because it will eventually clear up a lot of his behavior as time progresses. This will be edited from time to time with more relevances...Possibly with other avatars as he meets them.))
The Lone Power is a complicated being. Here, the Lone Power is based off an almost pure proud evil with memories of a glorious past of lights that he cannot gather.
However,since he is a mere fragment of this Power, his own role changes, depending on his surroundings. Since Paixao is light, the Lone Power is beginning to develop ambivalence more than relying on absolute evil. Ambivalence is an important thing--it can be overlooked and written off. It means blending in with the grays rather than sticking out. It can be considered a mind not completely made up, or ignorance. One more step toward maturity.
He has vague memories of his forms, of the worlds he has lived in. He most of all, can identify those who are His. His avatars and pawns from other worlds, those who did His bidding, accepting and creating death and using it. Usually for His means in exchange for some form of Life. He claimed his gift was for making creation Better than his brother had made it. Ridding their worlds of that which he said was their enemy.
He is quite disgusted with Paixao because it is "Nice Land"--a world of goody-goody, ever-graceful, sweet-tempered civilians. So few of them have decent darknesses in their hearts and souls. However, he can feel more substantial darknesses among them and he looks forward to those. Although he can sense things, and he knows that he is both inside and outside of time, he is NOT omniscient or omnipotent. He merely knows possibilities, but he likes twisting those possibilities. Even gods die, he usually does not tell his pawns that truth.
An Introduction to the Lone PowerThe Wizard's Manual's entry on the Lone Power( spoilers lists of The Lone Power and His Pawns )