Ashnod's Altar, Sorcerer's Broom, Carnival of Souls, and Zulaport Cutthroat

Prerequisites

• Ashnod's Altar on the battlefield
• Sorcerer's Broom on the battlefield
• Carnival of Souls on the battlefield
• Zulaport Cutthroat on the battlefield
• You control an additional token copy of Sorcerer's Broom
• available

Steps

1. Activate Ashnod's Altar by sacrificing one of your Sorcerer's Broom creatures, adding
2. The surviving Sorcerer's Broom and Zulaport Cutthroat each trigger
3. Resolve Zulaport Cutthroat's trigger, gaining 1 life and causing each opponent to lose 1 life
4. Resolve Sorcerer's Broom's trigger, paying to create a token copy of Sorcerer's Broom
5. Carnival of Souls triggers, causing you to lose 1 life and add
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite LTB
• Infinite sacrifice triggers