Blood Funnel, Memory Crystal, Seething Anger, Sedgemoor Witch, and Birgi, God of Storytelling // Harnfel, Horn of Bounty

Prerequisites

• Blood Funnel on the battlefield
• Memory Crystal on the battlefield
• Seething Anger in hand
• Sedgemoor Witch on the battlefield
• Birgi, God of Storytelling // Harnfel, Horn of Bounty on the battlefield
• available

Steps

1. Cast Seething Anger with buyback by paying
2. Birgi, Blood Funnel and Sedgemoor Witch trigger
3. Resolve the Birgi trigger, adding
4. Resolve the Sedgemoor Witch trigger, creating a 1/1 Pest creature token
5. Resolve the Blood Funnel trigger, causing you to sacrifice the Pest token
6. When the Pest dies, it triggers, causing you to gain 1 life
7. Resolve the Seething Anger spell
8. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite magecraft triggers
• Infinite power for creatures you control until end of turn
• Infinite lifegain triggers
• Infinite lifegain