Ratadrabik of Urborg + Gollum, Patient Plotter + Ashnod's Altar

Ratadrabik of Urborg

Gollum, Patient Plotter

Ashnod's Altar

How it works

1. Activate Ashnod's Altar by sacrificing Gollum, adding CC.
2. When Gollum dies, it and Ratadrabik trigger.
3. Resolve the Ratadrabik trigger, creating a nonlegendary token copy of Gollum that is a 2/2 Zombie in addition to its other types.
4. 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.
5. Repeat.