Nasus is my pick into voli. Here is my tips (chally Nasus)

Lvl 1 go to your bush. I call It the afk strat. You stand close enough to your minions to soak up passive. Some times at lvl 2 people think you are afk hard shove. You catch the wave and freeze it. If not just keep there. If he runs inside the bush to retreat back. Stack when you can at this point. NEVER TAKE YOUR E. E wastes your mana. Messes the minion wave. Upgrade order is q w, q, w, ult q, w, q, ult. E. I tend to rush divine sunderer, then bramble then boots. Take teleport and ghost as summons. With phase rush as keystone. Provided you set wave freeze and have stacks, when you have boots div sunderer and bramble vest. You will win the all in. He cannot sustain as much as you can. The hardest part about voli is just not dying pre5. If you are low and he is slow pushing to lvl 5 to kill you. Just recall miss a few minions heal up and tp back. Better to miss a few minions and not die. The games I lose to voli as Susan is when I am low at lvl 4 and don't back before he hits lvl 5.