I'm sure I'm not the first to think of this ... this season

Ziggs support

Probably could be played with a different setup, but this worked well for me.

Guardian + Demolish Start with Relic Shield for the health over AP.

In my game, I didn't really poke much. I probably could have poked more, but I was a little worried about the enemy Leona jumping on me or my Caitlin. Fortunately Cait was good at pushing the wave, which allowed me to get a few Demolish procs off.

Around about the time that I got my 4th point into W and I had bought a Hextech Protobelt-01 I could have got the outer tower low enough to nuke it with my W.

In that game though, my whole team happened to be bot lane around that time and we could have auto attacked it down with a single minion wave. I still nuked it and we pushed up to the second tower, but the enemy team came flying in like banshees. I think I could have probably taken it out that wave too.

We ended up rotating mid and took both of those towers out in a single wave.

Honestly, my whole team was way ahead. Top had already dominated their lane and taken down both towers before all of this. Mid and jungle might have been even, but I think even if top wasn't so far ahead, I would have been able to drop towers in every lane.

This also might be good in mid, or even top, but I think it works as a support because you can potentially unlock bot first, which theoretically increases your siege pressure more than any other lane.