Across all of my testing with the theme, there are three standout rules to follow for the rest of the deckbuild that gives the Chaos Ritual strategy all it needs to thrive: Every build needs to have at least: 1 non-theme way to get Skull Archfiend of Chaos to the GY without requiring the Normal Summon 1 non-theme way to get 8 Levels of monster(s) to the GY, to banish for your first Ritual Summon, without requiring the Normal Summon 2+ ways to field a Level 7+ Main Deck monster, that doesnt mind being left on board, that you would also like returned to hand
Black Bolt and White Flare dropped simultaneously as paired sets, making the two SARs a natural collector pair buying one without the other feels incomplete to most SV11 completionists
Additionally, we can cast it from exile on a later turn for its full mana cost
Don't rely on pricing mentioned in any article, including this one, as it may be outdated or inaccurate
THE STACK The stack is a game zone shared by all players (like the battlefield) where spells and abilities wait to resolve
Lastly, don't think the last ability should count himself