Erythnul

Erythnul is the god of envy, hate, malice, panic, slaughter, ugliness. His domain is war. His symbol is a bestial mask. When the Deity War broke out, he immediately gathered his minions and launched an all-out assault on Celestia - not because Nerull had commanded him to do any such thing, but simply out of a desire for bloodshed. Though he carved a bloody swath through the angels and other celestial beings that inhabited the plane, his actions quickly drew the attention of Kord, Moradin, and Bahamut. After an intense (but very brief) battle, the three gods utterly destroyed Erythnul.