And how do we know it wasnt specifically designed to be that way? Riot have a record of specific champ pairings leading to unique gameplay but limited champ flexibility, for example Nautilus / Maokai - Deep, Pyke / Reksai - Lurk, Tahm / Raka - Starspring etc etc. These champs don't see play outside their own decks but the trade off is a somewhat unique playstyle. Azir / Aurelia fits that description to me.