Having someone that can cheese the rifts (anyone with Deep tunnel or HnH) is huge. A good LW Tychus opening the map as fast as possible to gain access to the rifts will also make a huge difference.
There are other good commanders for this as well, but those are the ones that really can carry.
Everyone can carry. Being OP donāt mean ācarryingā.
Thatās exactly what happened to me last night, met a guy who knew exactly what to do. This brutation was actually fun while playing with this guy, we got rid of nearly all of the rifts immediately, especially at the end. Of course I added him and chatted a bit with him, seemed like a nice dude and we were both kinda glad that we found each other for this and future mutations.
And for the sake of the statistics: he was playing Tychus and I was playing Vorazun. You really donāt need any of the āOPā commanders for this weekās muta, but I guess it makes it easier.
EDIT: With āOPā i mean for THIS week op, like H&H and Abathur. I know that Tychus is quite good for nearly everything. 
took a couple of tries but, I was able to beat it, ally was Abathur, I was Zagara. Partner took care of the rifts, and I tried my best to defend the objectiveā¦couldāve done betterā¦XD
Donāt they? I remember blasting down the rocks with Karax and not having enough money for building the nexus when micro transaction was active.
they do cost a bit of money, but micro transaction really isnāt bad and P3 Karax is very strong if you have an early spotter before you can start flying observers around.
Might a bit late on this, I finally beat this mutation at custom game with Zagara P3 and P2 Tychus ally.
Deep Tunneling Zagara is really make a big difference when it comes to clearing early to middle void rift, especially when those rifts were spawned at far locations.
Well P2 Tychus is amazing on this as well - Tychus pushing forward, Nux defending, Sam destroying Void rifts, Rattlesnake attacking disruption towers, Nikara offering the moral support ā¦ 
The biggest issue might be in the ~early game when rifts can spawn near 4th terminal while the path there has not been cleared yet.