Originally Posted by Tamed
Why? This goes against absolutely everything the character is about.
Where do you draw that conclusion from? I am unaware of anything about Rammus that makes him decidedly anti-Noxus.
The ultimate goal for the story matches is to create a pool of non-affiliated champions that players will be able to draw from in addition to the specific faction-aligned champions. Rammus is one of those non-affiliated champions. With this logic applied to the ideal way story matches will be in the future, it would have been possible for Rammus to have fought for Ionia and Noxus.
Since we put the team composition pool together by hand and used an intentionally small champion pool for the first match, we added Rammus as Noxian tank option.
If that answer does not satisfy you, however, then there's always this explanation... http://www.leagueoflegends.com/board...d.php?t=367810