Cloudstone Curio, Death's Shadow, Phyrexian Altar, and Life Finds a Way

Prerequisites

• Cloudstone Curio on the battlefield
• Death's Shadow in hand
• Phyrexian Altar on the battlefield
• Life Finds a Way on the battlefield
• You control at least one nonartifact creature token
• Your life total is no greater than 12
• available

Steps

1. Cast Death's Shadow by paying
2. When Death's Shadow enters the battlefield, Cloudstone Curio and Life Finds a Way trigger
3. Resolve the Cloudstone Curio trigger, doing nothing
4. Resolve the Life Finds a Way trigger, creating a copy of any nonartifact creature token you control
5. When the creature token enters the battlefield, Cloudstone Curio triggers, returning Death's Shadow to your hand from the battlefield
6. Activate Phyrexian Altar by sacrificing a creature token, adding
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count