Paleozoic " Paleozoic " , known as " Burgesstoma " ( バージェストマ " Bājesutoma " , 버제스토마 " Beojeseutoma " ) in the OCG , is an archetype of mostly Level 2 WATER Aqua Normal Pseudo - Trap Monster s with 1200 ATK and 0 DEF , introduced as Korean exclusives in " Clash of Rebellions " . Design . Appearance . The archetype ' s cards are based on animals from the Period , specifically those found in the , a fossil field in Canadian Rockies of British Columbia , Canada . Origin . The archetype ' s OCG name , " バージェストマ " ( Burgesstoma ) , is derived from the , where the animals the archetype derived its appearance from were found . Its TCG name , " Paleozoic " , is derived from the Era , the first geological period of which is the Cambrian Period . Playing style . The " Paleozoic " archetype is mainly composed of Normal Trap Cards . Each one have its particular effect but they have in common the capacity of Special Summoning themselves from the Graveyard as a Level 2 WATER Aqua Normal Monster with 1200 ATK and 0 DEF whenever a Trap Card is activated , thus allowing them to quickly swarm the field through normal usage of their own Trap Effects . The archetype ' s ace cards are their Xyz monsters , namely " Paleozoic Anomalocaris " and " Paleozoic Opabinia " . " Anomalocaris " helps to maintain hand advantage by excavating the Deck and adding an excavated Trap Card to the hand ( be it a " Paleozoic " Card or not ) ; this effect triggers when a Trap Card is sent from the Spell / Trap Zone to the Graveyard . " Opabinia " speeds up the Deck ' s strategy , by allowing " Paleozoic " cards from being activated directly from the hand . Both of them are unaffected by other monster ' s effects and have an additional effect that basically rewards their owner for using them in a dedicated " Paleozoic " Deck , by either destroying a troublesome card on the field or fetching a " Paleozoic " Card from the Deck . The archetype ' s Trap Cards banish themselves when they leaves the field after being Summoned from the Graveyard by their own effects , which can be avoided by using them as Xyz Materials . Thus , the archetype also benefits from utilizing other Rank 2 Xyz Monsters such as " Cat Shark " and " Sky Cavalry Centaurea " in concert with " Anomalocaris " and " Opabinia " . As the archetype ' s Trap Cards are all Level 2 WATER Aqua monsters while they are treated as monsters , " Wetlands " can be included in the Deck to give these cards a much needed power boost , as they all have low ATK , which can raise issues regarding their ability to survive on the field . The deck itself also has amazing synergy with the Frog engine , mainly " Swap Frog " , " Dupe Frog " and " Ronintoadin " since they are also Level 2 Aqua monsters . Due to this , and the fact that the Paleozoic cards themselves are treated as Aqua monsters while on the field , they can play the Rank 2 Xyz " Toadally Awesome " . Due to their capability of accumulating chain , you can also consider adding some cards like " Reckless Greed " and " Waboku " . " Mirror Force " will protect your Paleozoic cards and potentially clean the field while letting you summon another Paleozoic card from your GY . Weaknesses . Due to their own self - banishing effect , which can serve as a deterrent from using the archetype ' s cards for any purpose other than Xyz Summon ( such as Tribute or Synchro Summons ) , this archetype is best suited only for Xyz Summoning Rank 2 Xyz Monsters , which can prove to be inflexible , given the low number of different Rank 2 Xyz Monsters in the game . The effect of " Paleozoic Leanchoilia " can also be used to return banished " Paleozoic " Trap Cards to the Graveyard for later re - use . This weakness can , however , be mitigated through the use of " Imperial Iron Wall " to keep the Trap Cards from banishing themselves , but you then cannot use Dinomischus since it banishes a card and Leanchoilia is useless since cards cannot be banished anyway . Additionally , as the archetype is dependent on activating Set Trap Cards to trigger their effects to Special Summon themselves from the Graveyard , " Denko Sekka " and , to a lesser extent , " Jinzo " are capable of easily locking them down , preventing the Set Trap Cards from even activating , as well as additional Trap Cards from being Set in the case of the former . Cards such as " Necrovalley " can also inhibit the Trap Cards ' re - usability , but they can be cleared away with the effects of " Paleozoic Olenoides " and " Paleozoic Dinomischus " .