Miirym, Sentinel Wyrm, and Worldgorger Dragon

Prerequisites

• Miirym, Sentinel Wyrm on the battlefield
• Worldgorger Dragon in hand
• available

Steps

1. Cast Worldgorger Dragon by paying
2. Worldgorger Dragon enters the battlefield, triggering its first ability and Miirym
3. Holding priority, you may activate all mana-producing permanents you control by tapping them, adding at least
4. Resolve the Miirym trigger, creating a token copy of Worldgorger Dragon
5. The Worldgorger Dragon token enters the battlefield, exiling all other permanents you control
6. The nontoken Worldgorger Dragon's second ability triggers, returning nothing to the battlefield
7. Resolve the nontoken Worldgorger Dragon's first ability from step 2, exiling all other permanents you control
8. The token Worldgorger Dragon leaves the battlefield, returning all cards exiled with it to the battlefield from exile
9. Repeat from step 2 as many times as desired
10. When you wish to break the loop, repeat the below steps after you've completed step 3
11. Resolve the Worldgorger Dragon trigger, exiling all other permanents you control
12. Resolve the Miirym trigger, creating a token copy of Worldgorger Dragon
13. When the token Worldgorger Dragon enters the battlefield, its first ability triggers, exiling the nontoken Worldgorger Dragon
14. When the nontoken Worldgorger Dragon leaves the battlefield, its second ability triggers, returning all cards exiled with it from exile to the battlefield

Results

• Infinite blinking
• Infinite ETB
• Infinite LTB
• Infinite mana permanents you control can produce