Fighting the new Bigfoot

So I guess my question for you is, how do you do this on a flat map when using puppet pretty much renders him invincible?

Hurricane solves that problem. The sheer amount of arrows Hurricane blasts out ensures Bigfoot is being hit the majority of the time. With Puppet, I've even managed to successfully push Bigfoot over half way across a Twisted Paths map before I ended up losing control. Phoenix is another great addition, because he only attacks when he knows he's gonna hit something. And since Bigfoot is Fire-weak, my level 25 Phoenix is putting out 13-15k hits on the sucker.

I doubt it affects the question at hand in any way, but I always stand pretty close to Bigfoot while fighting it, too (Phoenix range, so that it constantly attacks with me). If you hold your ground pretty close to Bigfoot, it's easier to keep casting Puppet a bit farther away each time. This way I can keep control and move him when I need to.