Ratadrabik of Urborg + Leyline of Singularity + Xiahou Dun, the One-Eyed

Ratadrabik of Urborg

Leyline of Singularity

Xiahou Dun, the One-Eyed

How it works

1. Activate Xiahou Dun by sacrificing it.
2. When Xiahou Dun dies, Ratadrabik triggers, creating a token copy of Xiahou Dun that is a 2/2 legendary Zombie in addition to its other types.
3. Repeat using the Xiahou Dun token

This clever loop turns the battlefield legendary, allowing Ratadrabik of Urborg to recognize every nonland permanent as a valid target for its resurrection magic. With Leyline of Singularity on the board, Xiahou Dun, the One-Eyed is naturally legendary, so sacrificing Xiahou Dun triggers Ratadrabik to create a non-legendary, 2/2 Zombie copy of him. Because that fresh token copy is *also* made legendary by the Leyline, sacrificing the token sets off Ratadrabik all over again, generating an endless stream of death and entry triggers.