Omni-Changeling, and Wispweaver Angel

Prerequisites

• Omni-Changeling in hand
• Wispweaver Angel on the battlefield

Steps

1. Cast Omni-Changeling by paying its mana cost, choosing to have it enter the battlefield as a copy of Wispweaver Angel When Omni-Changeling enters the battlefield, it triggers, blinking Wispweaver Angel
2. When Wispweaver Angel enters the battlefield, it triggers, blinking Omni-Changeling
3. Choose to have Omni-Changeling enter the battlefield as a copy of Wispweaver Angel
4. Repeat from step 2

Results

• Infinite ETB
• Infinite LTB