Emptiness + Phyrexian Altar + Eternal Witness

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 Eternal Witness from your graveyard to the battlefield.
6. 6When Eternal Witness enters, it triggers, returning Emptiness from your graveyard to your hand.
7. 7Activate Phyrexian Altar by sacrificing Eternal Witness, adding .
8. 8Repeat.

Effects

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