You can target up to 3 "Therion" monsters in your GY; Special Summon this card from your hand, and if you do, equip them to this card. You can discard 1 "Endless Engine Argyro System"; destroy all cards your opponent controls. While this card is equipped to a monster: You can Special Summon this card, then equip the monster this card was equipped to, to this card. You can only use each effect of "Therion Irregular" once per turn.
| Printing | Rarity | 1st Edition | Unlimited | Actions |
|---|---|---|---|---|
MP23-EN12025th Anniversary Tin: Dueling Heroes Mega Pack | C | 1st | Unl. | |
POTE-EN009Power of the Elements | UR | 1st | Unl. |
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