User blog comment:Darksusanoo/(Champion Rework) Syndra, the Dark Sovereign/@comment-24385282-20150729031653/@comment-24385282-20150729215941

(Fixed my keyboard thank god)

Seeing as the upgrade for Dark Sphere was that its duration would be reset I assumed that it wasn't reset by any ability until it reached its max rank. On live I think her ultimate resets used Spheres as well...so does this mean the only change at its max rank is that Scatter the Weak Resets it?

I'd say a 1.8 second cooldown on Dark Sphere and having your ultimate up as often as possible would make the CDR worth it, seeing as you'll want to be spamming Spheres as much as possible late game and your burst is gated by your ultimate's cooldown.