Mortuary + Bloodflow Connoisseur + Tarpan + Gwenom, Remorseless

Mortuary

Bloodflow Connoisseur

Tarpan

Gwenom, Remorseless

How it works

1. Activate Bloodflow Connoisseur by sacrificing Tarpan.
2. When Tarpan dies, it and Mortuary triggers.
3. Resolve the Mortuary trigger, putting Tarpan from your graveyard onto the top of your library.
4. Resolve the Tarpan trigger, causing you to gain 1 life
5. Resolve the Bloodflow Connoisseur ability.
6. Cast Tarpan from the top of your library by paying 1 life due to Gwenom.
7. Repeat.

This clever loop lets you endlessly sacrifice and recast your creatures by turning your library into a revolving door. You use Bloodflow Connoisseur to sacrifice Tarpan, triggering Mortuary to seamlessly recycle Tarpan right back to the top of your library. Gwenom, Remorseless then steps in to bridge the gap, allowing you to bypass mana costs and recast Tarpan straight off the top for a mere sliver of life, which is easily offset by Tarpan's own life-gaining death trigger.