Cauldron Familiar, City Pigeon, Cloudstone Curio, and Phyrexian Altar Combo

Cauldron Familiar, City Pigeon, Cloudstone Curio, and Phyrexian Altar

Here's how the cards Cauldron Familiar, City Pigeon, Cloudstone Curio, and Phyrexian Altar results in Infinite LTB, Infinite ETB, Infinite sacrifice triggers, Infinite death triggers, Infinite lifegain triggers, Infinite lifegain, Infinite storm count, and Infinite lifeloss

Cauldron Familiar

City Pigeon

Cloudstone Curio

Phyrexian Altar

Prerequisites

Cauldron Familiar in the graveyard
City Pigeon on the battlefield
Cloudstone Curio on the battlefield
Phyrexian Altar on the battlefield

Steps

Activate Cauldron Familiar by sacrificing a Food, returning it from your graveyard to the battlefield
When Cauldron Familiar enters, it and Cloudstone Curio trigger
Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life
Resolve the Cloudstone Curio trigger, returning City Pigeon from the battlefield to your hand
City Pigeon triggers, creating a Food token
Activate Phyrexian Altar by sacrificing Cauldron Familiar, adding
Cast City Pigeon by paying
When City Pigeon enters, Cloudstone Curio triggers
Choose not to return anything to your hand
Repeat