Prerequisites
- Ratadrabik of Urborg on the battlefield
 - Gollum, Patient Plotter on the battlefield
 - Goblin Bombardment on the battlefield
 
Steps
- Activate Goblin Bombardment by sacrificing Gollum
 - When Gollum dies, it and Ratadrabik trigger
 - Resolve the Ratadrabik trigger, creating a nonlegendary token copy of Gollum that is a 2/2 Zombie in addition to its other types
 - Resolve the Gollum trigger from step 2, causing the Ring to tempt you, and for the Gollum token to become your Ring-bearer, thus making it legendary
 - Resolve the Goblin Bombardment ability from step 1, dealing 1 damage to any target
 - Repeat
 
Results
Required Cards 3

Ratadrabik of Urborg
Legendary Creature — Zombie Wizard

Gollum, Patient Plotter
Legendary Creature — Halfling Horror

Goblin Bombardment
Enchantment