Golgari Thug + Umbral Collar Zealot + Healer of the Pride + Bolas's Citadel

Golgari Thug

Umbral Collar Zealot

Healer of the Pride

Bolas's Citadel

How it works

1. Activate Umbral Collar Zealot by sacrificing Golgari Thug.
2. When Golgari Thug dies, it triggers, putting it from your graveyard onto the top of your library.
3. Resolve the Umbral Collar Zealot ability.
4. Cast Golgari Thug from the top of your library by paying 2 life.
5. When Golgari Thug enters, Healer of the Pride triggers, causing you to gain 2 life.
6. Repeat.

This clever loop lets you turn life into an engine of endless iteration by leveraging Bolas's Citadel to cast spells straight from the top of your library for a life payment instead of mana. Umbral Collar Zealot provides the vital sacrifice outlet to send Golgari Thug to the graveyard, whose own death trigger promptly places it right back onto the top of your library. Meanwhile, Healer of the Pride completely offsets the life cost paid to recast the Thug, converting every single entry into a net-neutral life loop that fuels infinite storm count, sacrifice triggers, and surveil.