Requires

Timestream Navigator must be on the battlefield. Gravecrawler must be on the battlefield. Fiend Artisan must be on the battlefield. You have the city's blessing. Timestream Navigator and Fiend Artisan do not have summoning sickness. You control at least one additional Zombie. Mana needed: each turn

Steps

1. Activate Timestream Navigator by paying , tapping it and putting it on the bottom of your library from the battlefield, causing you to take an extra turn after this one.
2. Activate Fiend Artisan by paying and sacrificing Gravecrawler, causing you to search your library for Timestream Navigator and put it onto the battlefield.
3. Cast Gravecrawler from your graveyard by paying .
4. Repeat each turn.

Results