Barian A Barian , or Varian ( バリアン " Barian " ) , is one of a species of beings originating from Barian World , a high - energy world in the " Yu - Gi - Oh ! ZEXAL " anime . Most of them were once human , but they all have been reincarnated as Barians when they died . The majority of those lived in the United Lands of the Poseidon Ocean before their deaths , hence why Nash was reborn as their leader . An elite group of Barians are the Seven Barian Emperors . The Fearsome Four of the Dark Dueling World are also an enforcer group of Barians . Since Barian World was originally part of Astral World before the power of Chaos was banished from it , a small portion of the Barians were originally denizens from Astral World . The only known Barian to fit in this category is Don Thousand . Design . Appearance & Physiology . While in Barian World , Barians appear humanoid , though they tend to conceal themselves in cloaks . One Barian , Vector , has also exhibited the ability to take on an energy form while on Earth , which resembles a winged , red version of Astral . The Seven Barian Emperors , formerly human , resemble humanoid beings with unnatural skin color , such as purple or red . Furthermore , all of them have what seem to be crystals and / or armored - like plates on their bodies , such as Mizar ' s face resembling a mask , Girag ' s face resembling a helmet , and Dumon having gems on his body . Also unlike humans , they seem to lack certain organs such as mouth or nose , or perhaps those organs are otherwise not seen ; ( excepted for Don Thousand due to being from Astral World ) despite this , their senses appear unhampered , as is their ability to speak . They also have crystals for hearts and as seen with Mizar , they seemingly have the ability to survive in space . They also cannot maintain their Barian forms on Earth without the use of a Sphere Field , with the exception of Number ruins . In contrast , other Barians , such as those belonging to the Fearsome Four of the Dark Dueling World , take on less humanoid forms depending on the different species based off of them , like a cicada , a jellyfish , a mosquito , and even a fly . They can even survive in low - energy enviornments such as Earth in their true forms . Etymology . The name Barian or Varian is derived from the latin word " varius " , whose definition can mean " different , changing , and diverse " as it reflects the Barian species having set apart from their Astral counterparts . The Seven Barian Emperors of Barian World are loosely named after one of the stars of the in the Japanese version : Durbe after Dubhe , Alito after Alioth , Mizar after Mizar , Girag after Merak , Vector after Phecda , Nasch after Benetnasch and Merag after Megrez . Abilities . While on Earth , Barians are forced to take on a human form , not knowing that this form was the one they had from the time they were humans , although Dumon apparently only needs to do this if his Baria Crystal is damaged . The only major resemblance between both their Barian and human form is their hair , which only changes color . As energy beings , they have remarkable tolerance to pain , even in human form ; Girag was able to take a punch in the face from Fender without so much as a flinch , though they are not immune to pain and injury entirely . Dumon , Erazor , Chironex , Scritch , and Mr . Heartland however , can retain their true Barian forms on Earth , though Dumon has only done so inside of or very close to " Number " ruins and the Fearsome Four of the Dark Dueling World all did so within Barian Fields . With the partial merging of Earth and Barian World , the Barian Emperors can take their true forms on Earth . Barians can travel from Barian World using Overlay Network s and can also utilize the ability on Earth , vanishing and teleporting on a whim . Mizar showed the ability to fire energy balls for offensive purposes , though they do not cause lasting damage . These abilities can also be granted to humans . Vetrix , who made a contract with the Barians , was able to produce energy ball s and use the aforementioned networks to travel . Barians possess the ability to Rank - Up their Xyz Monster s by the use of " Rank - Up - Magic Barian ' s Force " , which possesses the power of Chaos to let them Summon " Number C " and " CXyz " monsters . " CXyz " monsters originate from Barian World and are produced there as " weapons " to defeat the " Number s " . While in human form , Barians cannot wield them , but they can use " Barian ' s Force " to brainwash humans into doing so for them . The brainwashing effect seems to vary depending on who does the brainwashing . Girag ' s victims retain their personalities , but become devoted to serving Barian World , while Vector ' s victims are more like sleeper agents ; retaining their original personalities until the brainwashing activates when they draw " Barian ' s Force " , at which point they become ruthless and sadistic like Vector himself . Alito ' s brainwashing on the other hand completely robs the victim of free will and personality . Don Thousand ' s brainwashing has two levels ; the first altering the victim ' s personality ( and possibly their memories ) to become more aggressive , while the second puts the victims completely under his control . Interestingly , the Barians themselves are not immune to being brainwashed as seen when Girag brainwashed Vector ( though he could have been faking ) , and when Don Thousand brainwashed Girag and Alito . In addition , if a Barian were to lose a Duel to a person using a " CXyz " , they would vanish from existence , just as Astral would if he lost to a " Number " .