Sethron, Hurloon General, Cloudstone Curio, Changeling Outcast, and Phyrexian Altar

Prerequisites

• Sethron, Hurloon General on the battlefield
• Cloudstone Curio on the battlefield
• Changeling Outcast in hand
• Phyrexian Altar on the battlefield
• available

Steps

1. Cast Changeling Outcast by paying
2. Changeling Outcast enters the battlefield, triggering Cloudstone Curio and Sethron
3. Resolve the Cloudstone Curio trigger, choosing to return nothing from the battlefield to your hand
4. Resolve the Sethron trigger, creating a 2/2 Minotaur creature token
5. The Minotaur enters the battlefield, triggering Cloudstone Curio, returning Changeling Outcast from the battlefield to your hand
6. Activate Phyrexian Altar by sacrificing the Minotaur token, adding
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count