the great leviathan yugioh card Number 17: Dragon | Details The Great Leviathan | Top-Strongest

If the creature with exploit isn't on the battlefield as the exploit ability resolves, you won't get any bonus from the creature with exploit, even if you sacrifice a creature

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(2023-11-10) If a resolving spell or ability instructs a specific creature to explore but that creature has left the battlefield, the creature still explores

If you're not about infinite combos, then leave these on the side

When Cruella is banished, a chosen character (like her, or even an opponent's card) can be returned to the owner's hand

Though it does not necessarily need to be a Fire King, all of them are among this card's available targets