Gyruda, Doom of Depths + Mortuary + Phyrexian Metamorph

Prerequisites

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Steps

1. 1Cast Phyrexian Metamorph by paying , having it enter the battlefield as a copy of Gyruda.
2. 2Put Phyrexian Metamorph into your graveyard due to the legend rule.
3. 3Mortuary triggers, putting Phyrexian Metamorph on top of your library from your graveyard.
4. 4Phyrexian Metamorph's enter the battlefield ability triggers, causing each player to mill four cards and you to return Phyrexian Metamorph from your graveyard to the battlefield as a copy of Gyruda.
5. 5Repeat from step 2.

Effects

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill