Cauldron Familiar and Witch's Oven is the main combo as it provides a blocker each turn and saps a life away from your opponent.

Gutterbones Use Witch's Oven to make the food token required for bringing back the kitty. Throw the skeleton in the oven, sac the food token to get the kitty and it pings for one damage allowing you to bring the skeleton back to your hand and re-cast.

Savvy Hunter helps keep the kitty in play.

Trail of Crumbs / Moldervine Reclamation provide card draw to keep the process going.

Bond of Flourishing to help find the combo pieces and a bit of life gain.

Clackbridge Troll allows both card draw and extra life because most people dont like getting hit in the face with an 8/8.

Questing Beast is a beat stick that gets around the goats and helps take out planeswalkers.

Garruk, Cursed Huntsman is just over all goodness.

Murderous Rider helps keeps threats off the board. Especially with pesky planeswalkers.

Order of Midnight is another way to bring back any of the creatures for cheap and provides a early game tiny threat that adds up over time.

Let me know what you think and be sure to +1 if you like the deck!