This is the one I was using with a spellbreaker replacing the stitched tracker. There's basically two main ways to build it, one using keleseth/kathrena/big beasts, and the other using mechanical whelps, zilliax, firework techs. I used the mech whelp one, though it looks like big beasts is performing a little better atm on tracking sites.
It's been my favorite deck both before and after boomsday, agreeing with what wolfram said.
The only decks is REALLY struggles with are odd pally and quest rogue, the other aggro decks are tough but definitely not hopeless. Strong vs most druids.
https://hsreplay.net/decks/auCBtG66y...D_THROUGH_FIVE