You can only activate 1 card with this card’s name per turn.
(1) When this card resolves, you can add 1 “Therions” monster from your Deck to your hand.
(2) Once per turn, if a monster(s) you control would be destroyed by battle, you can send 1 “Therions” card or 1 “Endless Engine Argyro System” from your Deck to the GY instead.
(3) Once per turn, when a monster(s) is destroyed by battle and sent to the GY: You can target 1 “Therions” monster in your GY; add it to your hand.