Kerakus was the God of War in my first homebrew campaign world. Being a teenage powergamer and having just read the Avatar Trilogy for the Forgotten Realms and Wrath of the Immortals for Basic D&D, I decided my world needed to have gods walking around and continents breaking apart and all of that. During that event, Kerakus killed the God of Wisdom and absorbed his personality and portfolio into himself, turning from LE to LN and making him not such a bad guy. I've been using him as a screen name for several years now. Ironically, in the homebrew I run now, I use the core gods in the PHB but I play Hextor more like Kerakus than the tyrant he's supposed to be.