Split pushing is a very bad idea in general above gold. Only a few heroes in the game are left that can do it effectively and most of them don't even have escapes. Not only is Nova one of the heroes with no escape, but she is also with no wave clear ability or sustain. And after the last rework her AOE build got destroyed. Not to mention the changes to minions, forts and XP that was introduced, made the whole idea obsolete.

She gets AOE at 16 when it is too late to impact the global game in this manner, and she can't even wave clear since you cant get AOE together with Decoy damage. Worst of all you are sacrificing her single target damage, her teamfight ability and her utility with decoys with this level 4, 7 and 20 talents. Nova can murk just fine, and with the new XP changes the team should have a dedicated hero for camps anyways, that is not Nova. The snipe CD resets are not nearly as good as it says on paper, since you can't effectively cast snipe every 2 seconds anyways unless the enemy players can't evade at all, and Rewind at 20 is too good to pass up.

I don't understand this idea at all and I practically wrote the book on AOE Nova. oO