Donal, Herald of Wings, Cloudstone Curio, and Peregrine Drake

Prerequisites

• Donal, Herald of Wings on the battlefield
• Cloudstone Curio on the battlefield
• Peregrine Drake in hand
• You control up to five lands that can tap to produce at least
• You have not copied a spell with Donal this turn
• available

Steps

1. Cast Peregrine Drake by paying
2. Donal triggers, creating a copy of the Peregrine Drake spell that is a 1/1 Spirit in addition to its other types
3. The copy of Peregrine Drake enters the battlefield, triggering itself and Cloudstone Curio
4. Resolve the Peregrine Drake trigger, untapping up to five lands that can tap to produce at least
5. Resolve the Cloudstone Curio trigger, returning Donal from the battlefield to your hand
6. Activate five lands by tapping them, adding at least
7. Resolve the original Peregrine Drake spell from step 1
8. Peregrine Drake enters the battlefield, triggering itself and Cloudstone Curio
9. Resolve the Peregrine Drake trigger, untapping up to five lands that can tap to produce
10. Resolve the Cloudstone Curio trigger, choosing not to return anything to your hand
11. Cast Donal by paying
12. Donal enters the battlefield, triggering Cloudstone Curio, returning Peregrine Drake from the battlefield to your hand
13. Activate five lands by tapping them, adding at least
14. Repeat

Results

• Infinite creature tokens
• Infinite ETB
• Infinite LTB
• Infinite mana lands you control can produce
• Infinite storm count