Elvish Piper, Intruder Alarm, and Tradewind Rider

Prerequisites

• Elvish Piper on the battlefield
• Intruder Alarm on the battlefield
• Tradewind Rider on the battlefield
• You have a creature card in hand
• Elvish Piper and Tradewind Rider do not have summoning sickness
• You control a creature that can tap to produce at least
• You control at least one additional creature

Steps

1. Activate a creature you control by tapping it, adding at least
2. Activate Elvish Piper by paying and tapping it, putting any creature card from your hand onto the battlefield
3. The creature enters the battlefield, triggering Intruder Alarm, untapping all creatures
4. Activate Tradewind Riders by tapping it and two other creatures you control, returning a creature card from the battlefield to your hand
5. Repeat

Results

• Infinite blinking
• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control