Diagonal Relation
From The Bakugan Wiki
A Diagonal Relation is when two Attributes are linked together, in order to form a power surge. Diagonal Relationships can corner opponents. For example, when Marucho activated the diagonal relation between Pyrus and Darkus, he was able to bring Preyas into the battle as a counter ability to help Drago. However, Diagonal Relations have not been used since Season 1.
