You cannot activate this card if you do not have “Vennominaga the Deity of Poisonous Snakes” in your hand or Deck.
You can activate multiple copies of this card in the same Chain when “Vennominon the King of Poisonous Snakes” is destroyed.
You can activate this card when your "Vennominon the King of Poisonous Snakes" that is being treated as a Spell Card (by "Relinquished", etc.) is destroyed.