This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by paying 500 Life Points when both "Andro Sphinx" and "Sphinx Teleia" on your side of the field are destroyed at the same time; then you can Special Summon this monster from your hand or Deck. When this card is Special Summoned successfully, pay 500 Life Points to increase the ATK of this card by 3000 points until the end of the End Phase.
|Pack||Galactic Origin [SR]|
These are the cards that are required on your field before you are able to summon Theinen.
These cards can be used to remove Pyramid of Light to trigger the condition to summon Theinen, at the same time eliminate most of your opponent’s backrow. If Wild Tornado is also destroyed, you can destroy opponent’s face up monster as well. Since Pyramid of Light is destroyed, results in Andro Sphinx and Sphinx Teleia being destroyed and removed from play simultaneously, you are now able to Special Summon Theinen. Theinen is able to end the game easier since there are no backrows to worry about, but still susceptible to Sphere Kuribohs. Since it costs Life Points to get this far, it is suggested you have some healing cards in your deck as well.
|Actions||Activates from your Deck|
|Summoning categories||Cannot Normal Summon / Cannot Set / Nomi / Special Summons itself from your hand / Special Summons itself from your Deck|
|LP||Pays Life Points for cost|
|Stat changes||This card gains ATK|