Dress Down, Phyrexian Altar, Lunarch Veteran // Luminous Phantom, and Cloud Key

Prerequisites

• Dress Down on the battlefield
• Phyrexian Altar on the battlefield
• Lunarch Veteran // Luminous Phantom in the graveyard
• Cloud Key on the battlefield
• "Creature" chosen with Cloud Key
• available

Steps

1. Cast Lunarch Veteran from your graveyard for its disturb cost by paying , causing it to enter the battlefield transformed as Lunarch Phantom
2. Activate Phyrexian Altar by sacrificing Lunarch Phantom, adding
3. Because Dress Down causes Lunarch Phantom to lose all abilities, it is not exiled when it is sacrificed, and is returned to your graveyard as Lunarch Veteran
4. Repeat

Results

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