Ratadrabik of Urborg, Leyline of Singularity, and Skirk Prospector

Prerequisites

• Ratadrabik of Urborg on the battlefield
• Leyline of Singularity on the battlefield
• Skirk Prospector on the battlefield

Steps

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

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite death triggers
• Infinite red mana
• Infinite creature sacrifice triggers