Your goal is to summon King of the skull servant. First of all, it's highly recommended to send as many skull servants as possibile to the graveyard, in order to increase King's attack. Your first strategy consists into sending wightprice from your hand/deck to the graveyard: use Gozuki's effect or card trooper's effect. In this way, you'll be able to activate wightprince's effect, and send a skull servant and a lady in wight from the deck/hand to the graveyard. The cheerful coffin is another useful card because allows you to send monster from you hand to the graveyard.
Once wightprince, skull servant and the lady in wight have been sent to the graveyard, you can activate wightprince's effect: banish all these 3 monsters and special summon the king from your deck. Now you can activate burial from another dimension to bring back your 3 monsters and boost the king's attack.
Wall of light and gravity bind are useful cards to control the field and to give you the time to set your board with 1/2 kings with 3k/4k atk points each. Extra deck is not necessary, but this deck can easily spam monsters even thanks to zombie master, and borreload dragon is quite strong.
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