Cruel Celebrant, Reassembling Skeleton, Carnival of Souls, and Ashnod's Altar

Prerequisites

• Cruel Celebrant on the battlefield
• Reassembling Skeleton on the battlefield
• Carnival of Souls on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Reassembling Skeleton, adding
2. Reassembling Skeleton dies, triggering Cruel Celebrant, causing each opponent to lose 1 life and gaining you 1 life
3. Cast Reassembling Skeleton from your graveyard by paying
4. Reassembling Skeleton enters the battlefield triggering Carnival of Souls, causing you to lose 1 life and adding
5. Repeat

Results

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