Mulcarn's sphere of ice was always about resistance to change and valuing the way things used to be. As such, his was the least changed sphere and he the least corrupt of the evil gods. Even right before deciding to invade Erebus, he recognized that his role in creation was important because it complimented its opposite. (All of the opposing spheres were meant to be complimentary rather than in conflict with one another.) The world needs to rest in the winter in order to allow new growth in the spring. Society needs to resist some changes, and perhaps more importantly needs to undo many changes after they are enacted if they did not work out very well. Otherwise we get bogged down in an incomprehensible overgrowth of gradually evolved systems that hinter the growth of beneficial changes. In its corrupt form, the biggest problem with the ice sphere is that it lacks objectivity when it hearkens back to an idealized past.
Mind was about the ability to predict the outcomes of events. When Mammon saw what he thought was his own death, he became preoccupied with not simply accepting how things will be but actively intervening to change them. When you constantly interfere to try to control the outcome, you cannot objectively determine what will happen because you would have to predict what you would do in order to prevent your predictions from being true. In its fallen form, Mind is all about Control. Greed is caused by insecurity and the belief that you are protected by owning and controlling things.
Camulos was always an Anarchist. His sphere always rejected the use of outside authority to limit the individual. As God of Peace, he was focused on preventing individuals from using force to coerce others. As God of Strife, he is focused on rejecting any principles that might prevent an individual from seeking his will over and against that of others.
Aeron as God of Strength was supposed to use his power to protect the weak. As God of Murder, he despises the weak and believes that the strong have the right to exploit them in any ways they wish.
Agares' sphere of hope turned to despair by first becoming a false hope. Despair is not the absence of hoping, but the conviction that they for which one so deeply longs is impossible. It is remaining fixated on the unachievable goal and so neglecting whatever better opportunities may emerge. (I like to think that the opposing sphere of Creation relates to not predicting or focusing on anything in particular, in order to remain open to making the best of the unexpected.)
Ceridwen's sphere was about the ties that bind all individuals together into healthy relationships. In her corruption, it is about neglecting the individual to focus on the empty structure of the relationships, on maintaining unhealthy relationships, and on breaking our healthy bonds.
Esus always dealt with secrets. He originally represented the confidence that allowed friends to be honest with each other without fear of having everything they share exposed to the rest of the world, and the ability to prevent conflict by refraining from saying things that would offend. In his corruption, the sphere is about exploiting that trust to manipulate others.
eace->War(Chaos)
