It is by no means perfect, but Fusion monsters now require the card Polymerization to summon, the alignment system is kicked to the curb, deck size is TCG accurates, and mechanics like side decks and tokens are actually implemented
banish your opponent's entire hand, and if you do, they draw the same number of cards
But the milling effect of "Wightprince" is not just to assist "King" and its effects, but also to prepare all sorts of revival tools ranging from "Kinka-Byo" and the mentioned "Masked Chameleon" targetting specific members, to "Tri-Wight" swarming the board if we have a higher focus arround the original "Skull Servant" and other small Normal Monsters
Special Summon 1 Level 2 or lower monster from your hand or Deck in face-up Attack Position or face-down Defense Position in your chosen Main Monster Zone, then your opponent can do the same from their hand or Deck to theirs
Magical Trick Mirror X TRAP When an opponent's monster declares an attack: Target 1 Spell in your opponent's GY