"Malicevorous" is a portmanteau of the word "malice" and the suffix "-vorous", meaning "feeding on". Thematically, they are all based off various kitchen tableware, with each member wielding a dining utensil as a weapon.
Special Summon 1 Level 2 Fiend monster from your Graveyard, with its effects negated, when a "Malicevorous" monster with a different name is Normal or Special Summoned.