Cloudstone Curio, Planebound Accomplice, and Chandra, Bold Pyromancer

Prerequisites

• Cloudstone Curio on the battlefield
• Planebound Accomplice on the battlefield
• Chandra, Bold Pyromancer in hand
• any other planeswalker on the battlefield
• available

Steps

1. Use to activate Planebound Accomplice, putting Chandra on to the battlefield
2. Return the other planeswalker to hand with the Curio trigger
3. Use Chandra's +1 ability to add and deal 2 damage to an opponent
4. Use to activate Planebound Accomplice, putting the first planeswalker on to the battlefield
5. Return Chandra to hand with the Curio trigger

Results

• Infinite planeswalker activations
• Infinite planeswalker ETB
• Infinite planeswalker LTB