Bloodflow Connoisseur + Nature's Rhythm + Preston, the Vanisher + Sister Hospitaller

Mana needed: {6}{G}{G}{G}{G} at most

WBG identity

Commander legal

The 4 combo pieces

• Bloodflow Connoisseur
• Nature's Rhythm
• Preston, the Vanisher
• Sister Hospitaller

How to execute it

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

What the combo produces

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