Ygra, Eater of All, Cauldron Familiar, Lithatog, and Tormod, the Desecrator

Prerequisites

• Ygra, Eater of All on the battlefield
• Cauldron Familiar in the graveyard
• Lithatog on the battlefield
• Tormod, the Desecrator on the battlefield

Steps

1. Activate Cauldron Familiar by sacrificing a Food
2. Ygra triggers, putting two +1/+1 counters on it
3. Resolve the Cauldron Familiar ability, returning it from your graveyard to the battlefield
4. Cauldron Familiar and Tormod trigger
5. Resolve the Tormod trigger, creating a creature token
6. Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life
7. Activate Lithatog by sacrificing Cauldron Familiar
8. When Cauldron Familiar dies, Ygra triggers, putting two +1/+1 counters on it
9. Resolve the Lithatog ability
10. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite lifegain triggers
• Infinite lifegain
• Infinite lifeloss
• Infinitely large Lithatog until end of turn
• Infinite +1/+1 counters on a creature