Sphinx " sphinx " ( スフィンクス " Sufinkusu " ) is an archetype of Beast and Rock monsters . The Beast monsters were used by Anubis in " " . Beasts . The first group consists of LIGHT Beast monsters . These are " Andro Sphinx " , " Sphinx Teleia " and " Theinen the Great Sphinx " . They were released in an " Exclusive Pack " after the release of " " . " Pyramid of Light " allows " Andro " and " Teleia " to be Special Summoned at a cost of 500 LP each , creating strong beat - sticks for no Tribute . While they can ' t attack the turn they are Summoned , they are strong enough to weather most attacks and survive until they can . Their effects allow them to inflict additional damage as well as that incurred by their sizable ATK points . These monsters cannot be Special Summon ed from the Graveyard , so you will need to stop them from getting destroy ed by your opponent ' s card effect ( for instance by using the effect of " Stardust Dragon " ) or , if they are destroyed , return them to your hand using " Monster Reincarnation " . You can also Normal Summon these two monsters , so " Pyramid of Light " is not essential . The reliance that these monsters have on " Pyramid of Light " can be a disadvantage : it can be easily destroyed , especially with cards like " Mystical Space Typhoon " or " Nobleman of Extermination " , which can banish all three copies at once . However , even if cards like " Jinzo " or " Royal Decree " negate " Pyramid of Light " , " Andro " and " Teleia " can still be Special Summoned because they do so through their own effects . " Theinen " , the trump card , can be Summoned only by pay ing 500 Life Points when " Andro " and " Teleia " are destroyed at the same time , making him a useful backup if your opponent destroys your monsters with " Dark Hole " or destroys the " Pyramid of Light " should it be on the field . His effect allows its ATK to be boosted to by 3000 points during the turn it is Summoned . While this boosted ATK is not enough to OTK the opponent , it is enough to either destroy most powerful monsters or wipe out most of the opponent ' s Life Points . It is , however , a dead draw , so cards that bring out " Andro " , " Teleia " and the " Pyramid of Light " are helpful . The effects of " Andro " and " Teleia " make them very powerful in offense . Not only do they have very high ATK points , but they inflict either half of a destroyed monster ' s DEF or ATK as additional damage . This is especially useful when they are used to destroy Defense Position monsters when no damage would normally be inflicted . The effect of " Theinen " allows either an greatly improved offense or an impenetrable defense ( if it is Summoned during your opponent ' s turn ) . While the combined powers of " Andro " and " Teleia " are greater than that of " Theinen " - the two monsters are able to inflict much more damage together than " Theinen " can in most cases . " Theinen " is a useful tool to call upon should your opponent have an extremely high - powered monster ( like " Malefic Rainbow Dragon " ) which the other " sphinx " cards cannot destroy . The boosted ATK of " Theinen " is enough to destroy almost all monsters in the game , and as it can be Summoned from the Deck , as it does not have to be in the hand for you to use this option . This means it can be advisable to sacrifice the power of " Andro " and " Teleia " by destroying them yourself , either with " Dark Hole " or by destroying your own " Pyramid of Light " in order to bring out " Theinen " from the Deck . Rocks . The second group consists of EARTH Rock monsters . These include " Hieracosphinx " , " Criosphinx " and " Guardian Sphinx " . They mainly enhance Deck which use the " " Once per turn , you can flip this card into face - down Defense Position " " effect . Though it has to be Tribute Summon ed , " Hieracosphinx " prevents your face - down monsters from being attacked . " Criosphinx " forces your opponent to discard card ( s ) from his / her hand after the same number of monster ( s ) on his / her side of the field return to his / her hand . Therefore " Criosphinx " and " Guardian Sphinx " form a combination which can prevent your opponent from viably Summoning anything . " Exxod , Master of The Guard " is not a " sphinx " , but can only be Special Summoned by Tributing a " sphinx " . " Exxod " combined with " Hierarcosphinx " makes a lethal force ; every time an EARTH monster is Flip Summon ed , " Exxod " inflicts 1000 points of direct damage to your opponents Life Points . With " Hierarcosphinx " on the field , your face - down cards cannot be attacked . The cards except " Hieracosphinx " are especially vulnerable to " Gaap the Divine Soldier " and " Final Attack Orders " . Also , " Dark Simorgh " and " Light of Intervention " can kill the effects of " Guardian Sphinx " and " Exxod " because a player will be unable to Set their monsters face - down , therefore monsters cannot be Flip Summoned . " Clear World " seems like a good addition to this Deck , since cards in this Deck have the effect of being flipped face down , and face down cards cannot be targeted by " Clear World " . However , the effect of " Clear World " for EARTH monsters destroys a face - up Defense Position monster you control during your Standby Phase . Your opponent can take advantage of this , and attack your face down monsters , even if they know they cannot destroy them , because " Clear World " will .