Anti-Venom, Horrifying Healer, Cloudstone Curio, Phyrexian Altar, and Palinchron

Prerequisites

• Anti-Venom, Horrifying Healer in hand
• Cloudstone Curio on the battlefield
• Phyrexian Altar on the battlefield
• Palinchron in the graveyard
• at most available

Steps

1. Activate up to seven lands by tapping them, adding at least
2. Cast Anti-Venom by paying
3. When Anti-Venom enters, its first ability and Cloudstone Curio trigger
4. Resolve the Cloudstone Curio trigger, returning nothing to your hand
5. Resolve the Anti-Venom trigger, returning Palinchron from your graveyard to the battlefield
6. When Palinchron enters, it and Cloudstone Curio trigger
7. Resolve the Palinchron trigger, untapping up to seven lands
8. Resolve the Cloudstone Curio trigger, returning Anti-Venom from the battlefield to your hand
9. Activate Phyrexian Altar by sacrificing Palinchron, adding
10. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite mana lands you control can produce
• Infinite untap of lands you control