Golgari Thug + Dross Harvester + Bloodflow Connoisseur + Gwenom, Remorseless

Golgari Thug

Dross Harvester

Bloodflow Connoisseur

Gwenom, Remorseless

How it works

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

This elegant loop centers on Bloodflow Connoisseur as the sacrifice outlet, which grows indefinitely by eating Golgari Thug over and over again. Each time Golgari Thug hits the graveyard, its dredge and death triggers let you stack it back onto your library, while Dross Harvester offsets the life you would otherwise lose by padding your total every time a creature dies. Finally, Gwenom, Remorseless is the engine that pulls it all together, allowing you to bypass mana costs and recast Golgari Thug straight from the top of your library by paying life instead.