Bohrok - Kal The Bohrok - Kal was an elite team of six Bohrok . They have increased powers , and have different Krana than the normal Bohrok . Their names are the same names as the normal Bohrok types , with the word " Kal " added to the end . Although they have similar names , they have different powers . In set form , each of the Bohrok - Kal sets had 40 pieces , and when a lever on the back was pressed , the head would shoot forward . When the lever was released , the head would go back . History . In the early years of the Matoran Universe , the Bohrok - Kal were created by the twin queens of the Bohrok swarms , Cahdok and Gahdok . The Bahrag exposed six Bohrok , one from each swarm , to a mutagenic substance . These Bohrok acquired new Elemental Powers , replacing their previous powers , and were piloted by Krana - Kal , advanced versions of the Krana worn by regular members of the swarm . They also gained the ability to communicate telepathically and speak the Matoran language . The Bohrok - Kal were fitted with silver armor and given special reptilian markings to distinguish them from other members of the swarms . They were then hidden in a special chamber far from the Bohrok Nests , and remained in hibernation for nearly 100 , 000 years . After the Toa Mata used their elemental powers to trap the Bahrag in a Toa Seal and were subsequently transformed into Toa Nuva by means of Energized Protodermis , the Bahrag sent a telepathic signal for the Bohrok - Kal to awaken . The queens ordered the Bohrok - Kal to steal the Nuva Symbols from each village , bring them to the cave where they were imprisoned , and place them onto the Nuva Cube . The Bohrok - Kal completed the first step of their task with success , and the Toa Nuva were left powerless . The Bohrok - Kal battled the Toa Nuva several times throughout their journey to the caves . Every time , the Toa Nuva were defeated . Even when three Toa Nuva transformed into a Toa Nuva Kaita Wairuha , three Bohrok - Kal formed a Bohrok - Kal Kaita , Bohrok - Kal Kaita Ja , and quickly defeated him . Soon the Bohrok swarms , who had been helping with the reconstruction of the Koro , began returning to their nests . Observing this , the Toa Nuva realized that the Bohrok - Kal had discovered the location of the Bahrag and were close to achieving their mission . The Toa Nuva united and followed the trails of the Bohrok - Kal until they arrived at a tunnel entrance made by Pahrak - Kal . It led into a cave where the Toa Nuva found a hole which led to the Bahrag ' s lair . Feeling that the edges of the hole were still hot , they were careful and sent Lewa down it to survey activity below . Inside the lair , Lewa witnessed the Exo - Toa attempting to defend the Nuva Cube from the Bohrok - Kal . However , the Bohrok - Kal overpowered the machines and prepared to awaken the Bahrag . By the time that the Toa Nuva entered the chamber , the Bohrok - Kal had already touched the Protodermis cage with their Krana - Kal . In desperation , Tahu called upon the power of the Kanohi Vahi , which he had received from Turaga Vakama . Slowing down time around the Bohrok - Kal , he ordered the Toa Nuva to retrieve the symbols , but the Bohrok - Kal ' s Krana - Kal turned silver and it created a shield blocking them from outside threats . Gali then conceived a plan to defeat the Bohrok - Kal . Reaching out to their Nuva Symbols , the Toa Nuva channeled their Elemental Powers through the Bohrok - Kal . This was too much power for the Bohrok - Kal to control and one by one , they fell to their own power . The Bahrag remained confined in their prison , and although the Krana - Kal managed to escape the destruction of the exo - shells , these were later captured by the Turaga . Abilities and Traits . The Bohrok - Kal were immensely powerful and effective in the use of their Shields to exert Elemental Powers . They were powered by Krana - Kal and could telepathically communicate in the Matoran Language . The Bohrok - Kal also shared many of the physical characteristics of their Bohrok cousins , to include : Types of Bohrok - Kal . Tahnok - Kal , Bohrok - Kal of Electricity : Tahnok - Kal was the leader of the Kal , who ' s shield could control electricity . Tahnok - Kal was the first to discover that stealing the Toa Nuva ' s Nuva Symbols would cause their elemental powers to vanish . In the final battle between the Toa and the Kal , Tahu Nuva ' s connection to his Symbol caused Tahnok - Kal ' s electricity to fuse its moving parts together ( although the comics claimed that it was merely paralyzed ) . The electrical energy formed a cage around him that didn ' t stop until he finally ran out of energy , and was overpowered by matoran that removed his krana - kal . Gahlok - Kal , Bohrok - Kal of Magnetism : Gahlok - Kal is the blue Kal , who ' s shield grants it power over magnetism , and thus could be used for anything from stopping a Toa in it ' s tracks to a variety of more mundane tasks , such as shattering magnetic rock . In the final battle , Gali Nuva ' s connection to her Nuva Symbol caused Gahlok - Kal ' s magnetic energies to spiral out of control , and attract the smashed remains of the Exo - Toa armour , crushing the Kal . Lehvak - Kal , Bohrok - Kal of Vacuum : Lehvak - Kal is the green Kal , who ' s shield can suck in vast quantities of air , and release it with the force of an explosion . Lehvak - Kal likes to stick to the jungle , where it can remain hidden . In the end , Lewa Nuva ' s connection to his Nuva Symbol caused Lehvak - Kal ' s vacuum shield to malfunction and launch itself into space ( though the webisode involving the Bohrok - Kal ' s defeat showed that the connection caused Lehvak - Kal to fly apart ) . Pahrak - Kal , Bohrok - Kal of Plasma : Pahrak - Kal is slow , but it sees all . It ' s shield grants it control over plasma , allowing it to melt practically anything . It was Pahrak - Kal who discovered the Bahrag ' s underground prison , melted its entrance , and led the other Kal to it . Eventually , Pohatu Nuva ' s connection to his Nuva Symbol caused Pahrak - Kal to melt a hole in the ground under him , causing him to fall presumably all the way to the planet ' s core . Nuhvok - Kal , Bohrok - Kal of Gravity : Nuhvok - Kal is probably the most brutally powerful of the Kal . It ' s shield grants it complete control over gravity , and thus immense power , as Tahu Nuva discovered the hard way when the Nuhvok - Kal defeated him with one shield , and an entire swarm of Tahnok ( whom Tahu was leading ) with the other . In the end , Onua Nuva ' s connection to his Nuva Symbol caused Nuhvok - Kal ' s power to turn wild and turn Nuhvok - Kal into a black hole , killing it . Kohrak - Kal , Bohrok - Kal of Sonics : While Nuhvok - Kal is the most powerful of the Kal , Kohrak - Kal is the most formidable . It ' s shield grants it power over sound , allowing it to do anything from creating sonic booms to making a wall out of solid noise . In the end , Kopaka Nuva ' s connection to his Nuva Symbol caused Kohrak - Kal to be shaken apart by the sonic vibrations of its malfunctioning shield .