Mana Echoes, Seal of Removal, Auramancer, and Chromatic Orrery

Prerequisites

• Mana Echoes on the battlefield
• Seal of Removal on the battlefield
• Auramancer on the battlefield
• Chromatic Orrery on the battlefield
• You control at least four other Humans and/or Wizards
• available

Steps

1. Activate Seal of Removal by sacrificing it, returning Auramancer to your hand
2. Cast Auramancer by paying
3. Auramancer enters the battlefield, triggering Auramancer and Mana Echoes
4. Resolve the Auramancer trigger, returning Seal of Removal from your graveyard to your hand
5. Resolve the Mana Echoes trigger, adding at least
6. Cast Seal of Removal by paying
7. Repeat

Results

• Infinite colored mana
• Infinite colorless mana
• Infinite ETB
• Infinite LTB
• Infinite storm count