User blog comment:Darksusanoo/(Champion Rework) Syndra, the Dark Sovereign/@comment-24385282-20150729031653/@comment-1920550-20150729220743

It goes from having the ult and W reset to both of those and the E. It's a way to curb her powercurve by making the spheres last less time in the early game. SInce you already have a refresh post level 9 and a full reset at level 16 you can mostly maintain your spheres for much longer than on live provided you keep getting the resets. It's the same reason ou don't build CDR on Katarina for instance