[{quoted}](name=Fluffysaurus Rex,realm=NA,application-id=3ErqAdtq,discussion-id=ANNaJAi2,comment-id=00030000,timestamp=2015-01-16T17:43:24.522+0000)
I can imagine. I think Zz'Rot on Shyvana would be pretty broken, because of her passive. It just scales so lovely. She would push increasingly well.
To be honest, I think that anyone with an aoe ability with high base damage could counter pushing. All you need is a Tiamat.
Keep in mind that ZZ'rots Portal works better when you build Tank. It was meant for tanks and scales with armor and MR. My guess is that shyvana would have enough pushing power without ZZ'rots' to not significantly benefit her.
Because of it's utility, Some Junglers or support may take interest when multiple objectives come into play. I don't usually think of ZZ'rot's portal as a fire and forget mechanism. But you could set up a Portal near tower, then prep for Dragon. The enemy Could likely lose tower if someone does not take care of the portal and yet it they could also be unable to contest Dragon if they defer resources to counter the Portal.