Veinwitch Coven + Panicked Bystander // Cackling Culprit + Phyrexian Altar

Veinwitch Coven

Panicked Bystander // Cackling Culprit

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing the one-drop creature, adding .
2. When that creature dies, it and Panicked Bystander // Cackling Culprit trigger.
3. Resolve the creature's ability, creating a creature token.
4. Resolve the Panicked Bystander // Cackling Culprit ability, gaining at least 1 life.
5. When you gain life, Veinwitch Coven triggers, causing you to pay to return the one-drop creature from your graveyard to your hand.
6. Activate Phyrexian Altar by sacrificing the token creature, adding one colored mana.
7. Cast the creature by paying one mana.
8. Repeat.