Therion Battle Royale

You can only use this Skill's second and third effects once per Duel. 1: You cannot Normal or Special Summon any monsters, except "Therion" monsters. 2: Reveal 1 "Therion" monster in your hand. Add 1 "Therion" card from your Deck to your hand or send it to the GY. Then, add 1 "Endless Engine Argyro System" from outside of your Deck to your hand. 3: Can be activated from turn 2 onward. Add 1 "Therion" monster from your Deck to your hand, then send up to 3 "Therion" cards from your Deck to the Graveyard.