User blog comment:Endless Exceptions/Champions Friends and Rivals list/@comment-3120592-20130514163015/@comment-5955640-20130514164120

I'm not sure if enemies would be more appropriate. Given that most of these champions belong to a country and or faction their enemy list would just be all the opposing champions. Rumble would have everyone that isn't bandle city as an enemy espescially the Denizens of Piltover and Zaun.

Zac would probably have anyone that is chaotic evil or lawful evil as he's a heroic figure and would probably seek to right all injustices.

It would end up being too broad and not very personal. Just being opponents based on morals and principle.

Rivalry specfies on an exact relationship that is not completely atagonistic although it can be. Darius for instance has a rivalry with his brother Draven but it's sibling Rivalry rather than Varus or Master Yi's whose Rivalry is purely revenge.