One simple thing Riot needs more of

Special interactions. Who doesn't like them? They are pretty easy for Riot to make (unless you're adding them for an old champion you can't get the voice actor for), and are either fun little secrets that don't add much, but are awesome to see, or can define a champion's entire relationship with another champion or area. An example of a champion with great interactions is Ekko. He has funny ones (Garen, Zilean) and lore-related ones (Viktor, Vi). There are a lot of them, and they make sense with his character, while still adding some new elements to it. It makes me understand and like him more.

My point from all of this is that Riot needs to add more of these when champions get new voiceovers or when they make new champions. Because they are awesome.