Aaron had thought that a crime as grave as unleashing a Chaos Hellhound would be enough to make the Pantheon take Cyric's threat seriously.
But it had not. The Pantheon had merely punished Cyric, stripping him of the [Murder] divine portfolio.
So why could the Pantheon not simply kill Cyric?
There were two reasons.
First, Cyric was a greater deity, a member of the High God Council, and the Three-Crowned King personally appointed by Ao. During the Time of Troubles, Ao had frightened the gods badly.
In short, the gods did not want to take responsibility. Midnight did want Cyric dead and was willing to take responsibility, but that was a personal grudge.
Second, the duties Ao had given Cyric included "murder," "strife," and "spreading fear." As Ao had said, guilt was innocence, and innocence was guilt. During the Time of Troubles, Torm had died alongside Bane to uphold justice and honor. Moved by his devotion to his duties, Ao had specifically resurrected him.
If Ao could resurrect Torm, then of course he could resurrect Cyric.
But judging by Ao's answer, as relayed by Mama Selûne, the gods were actually overthinking it. The Overgod had no interest whatsoever in such matters. Whether Cyric slaughtered all the gods or the gods killed Cyric, Ao considered these trivial matters, nothing worth disturbing him over. He cared only about balance. If other deities died, new deities would naturally arise to inherit their portfolios.
Aaron was very fond of the saying, "Life finds a way."
Perhaps the only thing that would truly draw Ao's attention was the arrival of the Chaos Gods. Those four dear brothers would directly upset the balance of the Realms.
As for not giving him the Crown of Murder, that undoubtedly exposed the gods' arrogance. Needless to say, they wanted