Preston, the Vanisher + Altar of Dementia + Fiend Hunter + Nature's Rhythm

Prerequisites

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Steps

1. 1Cast Nature's Rhythm by paying at most , searching your library for Fiend Hunter and putting it onto the battlefield.
2. 2When Fiend Hunter enters, it and Preston trigger.
3. 3Resolve the Fiend Hunter trigger, exiling another creature if needed.
4. 4Resolve the Preston trigger, creating a token copy of Fiend Hunter that is a 0/1 Illusion.
5. 5When the Fiend Hunter token enters, it triggers, exiling the nontoken Fiend Hunter.
6. 6Activate Altar of Dementia by sacrificing the Fiend Hunter token
7. 7When the Fiend Hunter token dies, it triggers, returning Fiend Hunter from exile to the battlefield.
8. 8Repeat from step 2.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers
• Infinite mill
• Infinite recursion of creature cards in your graveyard
• Infinite self-mill