Lumbering Battlement, Felidar Guardian, and Cloudshift

Prerequisites

• Lumbering Battlement on the battlefield
• Felidar Guardian in exile
• Cloudshift in hand
• available

Steps

1. Cast Cloudshift by paying , blinking Lumbering Battlement
2. Lumbering Battlement leaves the battlefield, causing Felidar Guardian to return to the battlefield
3. Felidar Guardian and Lumbering Battlement enter the battlefield, triggering their abilities
4. Resolve the Lumbering Battlement trigger, exiling Felidar Guardian until Lumbering Battlement leaves the battlefield
5. Resolve the Felidar Guardian trigger, blinking Lumbering Battlement
6. Repeat from step 2

Results

• Infinite blinking
• Infinite ETB
• Infinite LTB