The trouble with Faceless Void and his lousy 47% win rate

Look at both his lvl 10 ability upgrades:-

+0.5 seconds Time Walk backtrack duration

and

+7 Time Dilation DPS per cooldown

Both these upgrades are so negligible its difficult to even call them upgrades at all.

If you go with the extra Time Dilation for backtrack, this will not help you even in the slightest when two enemies hit you with their 2 second stuns. You simply won't get your HP back when you finally jump.

If you go with the Time Dilation DPS, the likelihood of it gaining you a kill is almost 0.

Additionally, Chronosphere should have its cooldown reduced slightly to bring it on par with Time Zone. At the moment Time Zone has a cooldown of 110 seconds at lvl 3, while Chronosphere's cooldown is currently 140 seconds at lvl 3. And Time Zone is the more team-friendly spell - offering attack speed buffs to any ally who dives inside. Meanwhile, Chronosphere gives no extra attack speed and any team mate who gets caught inside is essentially useless for its duration.