Tradewind Rider, Intruder Alarm, and Phyrexian Walker

Prerequisites

• Tradewind Rider on the battlefield
• Intruder Alarm on the battlefield
• Phyrexian Walker in hand

Steps

1. Cast Phyrexian Walker by paying its mana cost
2. When Phyrexian Walker enters the battlefield, Intruder Alarm triggers, untapping all creatures
3. Activate Tradewind Rider by tapping it, Phyrexian Walker and one other creature you control, returning Phyrexian Walker from the battlefield to your hand
4. Repeat

Results

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