Anowon is only ok. The fact that he triggers on your upkeep rather than each opponent's is a real drawback. Most of the time he will not survive a full circuit. If you want that effect I would pay a few more mana and run Sheoldred instead. She draws just as much hate but creates way more value.
I played Drana as my commander for years, but got bored recently and wanted to try something new. I've switched to Kuon, Ogre Ascendant and have been enjoying it. You have kind of a mini game of trying to flip him. Fleshbag marauder effects are the easiest way to do it. Then you get to watch him eat the board.
Anowon is only ok. The fact that he triggers on your upkeep rather than each opponent's is a real drawback. Most of the time he will not survive a full circuit. If you want that effect I would pay a few more mana and run Sheoldred instead. She draws just as much hate but creates way more value.