I think the new Volizor should be played with a strong CC team, he has a lot of slows and stuns so you can drive crazy your ennemies.

When you talk about spells : E spell is very interesting in melee fights, it activates a little bit like Veigar's cage so not right away but a good way of forcing ennemies to stay in it is to press E, then Q to stun the ennemy in your E spell and your Z will finish the work as well as your potential allies. If the ennemy has a lot of speed or can teleport easily, your E will still provide you a shield if you stay in the zone so don't think it's useless ! The more HPs you have, the better your shield will be :) ... Concerning the ult, it's VERY powerful to dive, especially to end an ennemy that is already low, or engage a team that doesn't want to get out of tower range. When pressing "R", you will jump in a zone a little bit like Zac but less far away from your jump spot, dealing heavy damages on the arrival and being UNTARGETABLE by the tower for a little time, + you gain hundreds of HPs, growing in SuperVoli like Nasus or Renek would do, but even better. Don't under estimate him because he will just be broken !