Krenko, Baron of Tin Street, Magda, Brazen Outlaw, and Leyline of Transformation

Prerequisites

• Krenko, Baron of Tin Street on the battlefield
• Magda, Brazen Outlaw on the battlefield
• Leyline of Transformation on the battlefield

Steps

1. Tap a creature using any method
2. Magda triggers, as the creature is a Dwarf due to Leyline of Transformation, creating a Treasure token
3. Activate the Treasure by tapping and sacrificing it, adding
4. Krenko triggers, causing you to pay to create a 1/1 Goblin creature token and giving it haste until end of turn
5. Repeat, tapping the Goblin instead

Results

• Infinite ETB
• Infinite tapped creature tokens