Great Whale, Shrieking Drake, and Panharmonicon

Prerequisites

• Great Whale in hand
• Shrieking Drake in hand
• Panharmonicon on the battlefield
• You control up to seven lands that can tap to produce at least
• available

Steps

1. Activate up to seven lands by tapping them, adding at least
2. Cast Great Whale by paying
3. When Great Whale enters the battlefield, it triggers twice
4. Resolve the first trigger, untapping up to seven lands
5. Holding priority, activate up to seven lands by tapping them, adding at least
6. Resolve the second Great Whale trigger, untapping up to seven lands
7. Cast Shrieking Drake by paying
8. When Shrieking Drake enters the battlefield, it triggers twice, returning it and Great Whale from the battlefield to your hand
9. Repeat
10. If the seven lands can tap to produce at least , this combo nets infinite mana

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite mana lands you control can produce
• Infinite untap of lands you control