Changeling Hero, and Dual Nature

Prerequisites

• Changeling Hero in hand
• Dual Nature on the battlefield
• available

Steps

1. Cast Changeling Hero by paying
2. When Changeling Hero enters the battlefield, its champion ability and Dual Nature's first ability trigger
3. Resolve the Dual Nature trigger, creating a token copy of Changeling Hero
4. When the Changeling Hero token enters the battlefield, its champion ability triggers, exiling the nontoken Changeling Hero
5. Dual Nature's second ability triggers, exiling the Changeling Hero token
6. When the Changeling Hero token leaves the battlefield, the nontoken Changeling Hero is returned to the battlefield from exile
7. Repeat from step 2
8. If you control additional creatures you wish to blink, you may resolve the Changeling Hero trigger in step 2 to exile them, and then proceed with the combo

Results

• Infinite LTB
• Infinite ETB
• Infinite blinking