If a monster that was Special Summoned from the Extra Deck, for example, Dante, Traveler of the Burning Abyss, is affected by Chain Disappearance, other copies of Dante will NOT be banished from the Extra Deck. Chain Disappearance cannot banish monsters from the Extra Deck.
Wikia's ruling that states otherwise is no longer valid.
Wikia's ruling that states otherwise is no longer valid.