Now that Bonz can reward the player with 3 Kings, this deck profile is out of date.
You can get a pretty beefy 5000 ATK, but without the Wigt support cards or very many reliable ways to mill the existing ones, it still isn't that great of a deck in this format.
If we had the other four members of the skull family in the game I'm sure people would complain about it being "OP" but honestly? If your deck doesn't have monster removal, effect negation or even just attack stopping cards how are you even winning in the first place?
I dunno lady in wight and wightprince have pretty powerful effects. you think konami would be able to add them without another CA situation?
Honestly, if you're going to use King of the Skull Servants as the main boss, use Gozuki to mill out the Servants. Also Creature Seizure seems gross if you want the Servants to be in the Graveyard ASAP. Order to Smash or Order to Charge could be a better use for it.