@Riot Cassiopeia's Tail
If you pay attention to Cassiopeia's tail it is very out of place and feels unnatural when moving around with League's instant turning system.
What I propose to make the tail movement more natural is use the same technology used in tracking Ekko's movements and have the tail follow her previous moves, make sure, however, that the tail does not collide with her body when making a 180 degree turn.