Dream Chisel, Ugin, the Ineffable, and Cloudstone Curio

Prerequisites

• Dream Chisel on the battlefield
• Ugin, the Ineffable on the battlefield
• Cloudstone Curio on the battlefield
• You control a nontoken creature that has morph or megamorph
• You have a creature card in hand that has morph or megamorph

Steps

1. Cast the creature card in your hand for its morph or megamorph cost by paying , putting it onto the battlefield face down as a 2/2 creature
2. When the creature enters the battlefield, Cloudstone Curio triggers, returning another creature card with morph or megamorph from the battlefield to your hand
3. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite storm count