Prerequisites
- Ratadrabik of Urborg on the battlefield
- Leyline of Singularity on the battlefield
- Bulwark Ox on the battlefield
Steps
- Activate Bulwark Ox by sacrificing it
- When Bulwark Ox dies, Ratadrabik triggers, creating a token copy of Bulwark Ox that is a 2/2 legendary Zombie in addition to its other types
- Resolve the Bulwark Ox ability
- Repeat using the Bulwark Ox token
Results
Required Cards 3

Ratadrabik of Urborg
Legendary Creature — Zombie Wizard

Leyline of Singularity
Enchantment

Bulwark Ox
Creature — Ox Mount