Birgi, God of Storytelling // Harnfel, Horn of Bounty, Manaform Hellkite, Mana Echoes, and Seething Anger

Prerequisites

• Birgi, God of Storytelling // Harnfel, Horn of Bounty on the battlefield
• Manaform Hellkite on the battlefield
• Mana Echoes on the battlefield
• Seething Anger in hand
• You control at least two Dragons and/or Illusions
• available

Steps

1. Cast Seething Anger with buyback by paying
2. Birgi and Manaform Hellkite trigger
3. Resolve the Birgi trigger, adding
4. Resolve the Manaform Hellkite trigger, creating a 5/5 Dragon Illusion creature token with haste
5. The Dragon Illusion enters the battlefield, triggering Mana Echoes, adding at least
6. Resolve Seething Anger, causing target creature to get +3/+0 until end of turn and returning Seething Anger to your hand
7. Repeat

Results

• Infinite colorless mana
• Infinite creature tokens with haste
• Infinite ETB
• Infinite LTB
• Infinitely powerful creatures until end of turn
• Infinite magecraft triggers
• Infinite storm count