Maralen of the Mornsong, Timestream Navigator, and The Fire Crystal

Prerequisites

• Maralen of the Mornsong on the battlefield
• Timestream Navigator in the library
• The Fire Crystal on the battlefield
• each turn plus each turn available

Steps

1. At the beginning of your upkeep, Maralen triggers, causing you to lose 3 life and search your library for Timestream Navigator and put it into your hand
2. Cast Timestream Navigator by paying
3. If you don't have the city's blessing, Timestream Navigator gives you the city's blessing
4. Activate Timestream Navigator by paying , tapping and putting it on the bottom of your library, causing you to take an extra turn after this one
5. Gain at least 3 life
6. Repeat each turn
7. Activate The Fire Crystal by paying and tapping it, creating a token copy of Timestream Navigator
8. If you don't have the city's blessing, the Timestream Navigator token will give you the city's blessing
9. Activate the Timestream Navigator token by paying , tapping it and putting it from the battlefield onto the bottom of your library, causing you to take an extra turn after this one
10. Repeat each turn

Results

• Infinite turns
• Lock