Sidisi, Regent of the Mire + Karmic Guide + Umbral Collar Zealot + Sparring Mummy

Sidisi, Regent of the Mire

Karmic Guide

Umbral Collar Zealot

Sparring Mummy

How it works

1. Activate Sidisi by tapping it and sacrificing Sparring Mummy, returning Karmic Guide from your graveyard to the battlefield.
2. When Karmic Guide enters the battlefield, it triggers, returning Sparring Mummy from your graveyard to the battlefield.
3. When Sparring Mummy enters the battlefield, it triggers, untapping Sidisi.
4. Activate Umbral Collar Zealot by sacrificing Karmic Guide.
5. Repeat.

This clever loop turns graveyard recursion into an engine of endless iteration by laddering your mana values and recycling your triggers. You kick things off by using Sidisi, Regent of the Mire to sacrifice Sparring Mummy, bringing back Karmic Guide from the graveyard; as Karmic Guide enters the battlefield, its own ability immediately pulls the Mummy right back out. Sparring Mummy's arrival untaps Sidisi so the cycle can start anew, while Umbral Collar Zealot waits in the wings to cleanly sacrifice Karmic Guide whenever you need to reset the loop.