Celestial Dawn, Eldrazi Displacer, and Mardu Warshrieker

Prerequisites

• Celestial Dawn on the battlefield
• Eldrazi Displacer on the battlefield
• Mardu Warshrieker on the battlefield
• You have attacked this turn
• available

Steps

1. Activate Eldrazi Displacer by paying , blinking Mardu Warshrieker
2. When Mardu Warshrieker enters the battlefield, it triggers, adding , in which the and can only be spent as colorless mana due to Celestial Dawn
3. Repeat

Results

• Infinite ETB
• Infinite LTB