Verdant Succession + Worldspine Wurm + Phyrexian Altar

Verdant Succession

Worldspine Wurm

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing Worldspire Wurm, adding one mana of any color.
2. Worldspire Wurm dies, triggering itself and Verdant Succession.
3. Resolve the Worldspire Wurm trigger, shuffling it into your library.
4. Resolve the Verdant Succession trigger, searching your library for Worldspire Wurm, putting it onto the battlefield and shuffling your library.
5. Repeat.