Changeling Titan, and Dual Nature

Prerequisites

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

Steps

1. Cast Changeling Titan by paying
2. When Changeling Titan 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 Titan
4. When the Changeling Titan token enters the battlefield, its champion ability triggers, exiling the nontoken Changeling Titan
5. Dual Nature's second ability triggers, exiling the Changeling Titan token
6. When the Changeling Titan token leaves the battlefield, the nontoken Changeling Titan 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 Titan trigger in step 2 to exile them, and then proceed with the combo

Results

• Infinite LTB
• Infinite ETB
• Infinite blinking