This deck utilizes Cauldron Familiar and Witch's Oven to repeatedly cycle pings at the opponent.
The basic combo is to play Cauldron Familiar and sacrifice it to the Witch's Oven, then sacrifice the food it created to revive it--this deals 2 damage to the opponent and heals you for 2, while leaving you with the familiar to sacrifice again. Stemming from this combo you have access to multiple minions that trigger when a minion dies or is revived to enhance the pings.
Mayhem Devil: Deal 1 targeted damage when sacrificing the familiar AND when sacrificing the food to revive the familiar.
Judith, the Scourge Diva: Deal 1 targeted damage when sacrificing the familiar.
Ayara, First of Locthwain: Deal 1 face damage and heal for 1 each time you revive a familiar and gain access to draw by sacrificing your familiar.
Syr Konrad, the Grimm: Deal 1 face damage and heal for 1 each time a familiar enters OR exits your graveyard.
With 1 familiar and 2 ovens, Ayara + a Familiar deals 4 face damage and heals you for 4 each turn; with a mayhem devil, you deal an additional 4 targeted damage; with Syr Konrad, you deal 4 additional damage and heal for an additional 4. While your opponent can clear your board, you can just play Chandra, Acolyte of Flame and sacrifice both elementals to the ovens, creating two food and reviving both familiars, which lets you continue the ping chain.