Emptiness + Phyrexian Altar + Skullwinder

Prerequisites

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Steps

1. 1Cast Emptiness for its evoke cost by paying .
2. 2When Emptiness enters, its first ability and evoke ability trigger.
3. 3Holding priority, activate Phyrexian Altar by sacrificing Emptiness, adding .
4. 4Resolve Emptiness's evoke trigger, failing to sacrifice it as it's no longer on the battlefield.
5. 5Resolve Emptiness's first trigger, returning Skullwinder from your graveyard to the battlefield.
6. 6When Skullwinder enters, it triggers, returning Emptiness from your graveyard to your hand.
7. 7Activate Phyrexian Altar by sacrificing Skullwinder, adding .
8. 8Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Target opponent returns all cards in their graveyard to their hand