When this card is activated: You can add 1 "Therion" monster from your Deck to your hand.
Once per turn, if your monster would be destroyed by battle, you can send 1 "Therion" card or 1 "Endless Engine Argyro System" from your Deck to the GY instead.
Once per turn, when a monster is destroyed by battle and sent to the GY: You can target 1 "Therion" monster in your GY; add it to your hand.
You can only activate 1 "Therion Discolosseum" per turn.
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