Preston, the Vanisher, Bloodflow Connoisseur, Nature's Rhythm, and Karmic Guide

Prerequisites

• Preston, the Vanisher on the battlefield
• Bloodflow Connoisseur on the battlefield
• Nature's Rhythm in hand or in the graveyard
• Karmic Guide in hand
• at most available

Steps

1. Cast Nature's Rhythm from your hand by paying or from your graveyard for its harmonize cost by paying at most , searching your library for Karmic Guide and putting it onto the battlefield
2. When Karmic Guide enters, it and Preston trigger
3. Resolve the Karmic Guide trigger, returning an applicable target from your graveyard to the battlefield
4. Holding priority, activate Bloodflow Connoisseur by sacrificing Karmic Guide
5. Resolve the Preston trigger, creating a token copy of Karmic Guide that is a 0/1 Illusion
6. When the Karmic Guide token enters, it triggers, returning Karmic Guide from your graveyard to the battlefield
7. Repeat from step 2

Results

• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite creature tokens
• Infinite death triggers
• Infinite recursion of creature cards in your graveyard
• Infinite sacrifice triggers