"Robotic HEROes" are divided into two groups: Union monsters and Fusion Monsters. All Main Deck "Robotic HERO" monsters are Union monsters that allow them to be equipped to any monster to give them extra effects. However, they are mainly made for the Destiny HEROes, having effects that Special Summon themselves if you control a specific "Destiny HERO" monster, all of which share the effect of preventing the equipped monster from being tributed the turn it is equipped. The Robotic HERO Fusion Monsters are Summoned by Tributing a specific "Destiny HERO" monster that is equipped with the appropriate "Robotic HERO" monster. "Robotic HERO" Fusion Monster possesses the same effect granted by the Union monster, as well as an upgraded version of the "Destiny HERO" monster's effect.