Jukular

Jukular appeared in 1980 TV series called Denshi Sentai Denziman. Jukular is Vader Monster "13" of the Vader Clan. Jukular is used alongside the Vader Clan for its "100-Point Cram School" plot, creating magic pencils to convince students that they can get perfect scores on tests and thus no longer need to study. After the Denziman discover the plot and prove that the students aren't learning anything, it sneaks into the home of Ken'ichi and tries to use its younger persona to convince him and the others to return to the cram school as before; when he denies it, he grows giant and starts abducting him and the other Denzi Kids for the Vaders to hold hostage. The Denziman pursue him and face him in combat, preventing him from using his giant form with DenziTiger before ultimately stopping him with the DenziStick Boomerang.

Arsenals
His main ability involve the manipulation of pencils created from its body, most notably to magically control them from a distance to allow for those using them to get perfect scores on tests; he can also throw them as spears and bombs and even use a pencil sharpener on his left shoulder to create shavings to attack opponents. Jukular also uses its growth and shrinking abilities to his advantage, shrinking to hide from opponents in small spaces and actually creating a "younger persona" from one of its smaller forms to both convince students to go along with the Vader Clan or to use bratty attacks against opponents. He can also turn invisible.