Molten Echoes + Changeling Berserker

Prerequisites

• any creature type chosen with Molten Echoes.

Steps

1. 1Cast Changeling Berserker by paying its mana cost.
2. 2When Changeling Berserker enters the battlefield, its champion ability and Molten Echoes triggers.
3. 3Resolve the Molten Echoes trigger, creating a token copy of Changeling Berserker with haste.
4. 4When the Changeling Berserker token enters the battlefiled, its champion ability triggers, exiling the nontoken Changeling Berserker until the token Changeling Berserker leaves the battlefield.
5. 5Resolve the champion ability from step 2, exiling the token Changeling Berserker.
6. 6The token Changeling Berserker leaves the battlefield, returning the nontoken Changeling Berserker from exile to the battlefield.
7. 7Repeat from step 2.

Effects

• Infinite ETB
• Infinite LTB