Timestream Navigator + Molten Echoes + Riptide Laboratory
Produces: Infinite turns, Lock
- Color identity
- UR
- Mana
- {3}{U}{U}{U} each turn
Prerequisites
You have the city's blessing and/or control at least eight permanents. "Human", "Pirate", or "Wizard" chosen with Molten Echoes.
Steps
- Cast Timestream Navigator by paying {1}{U}.
- If you don't have the city's blessing and control ten or more permanents, Timestream Navigator gives you the city's blessing.
- When Timestream Navigator enters the battlefield, Molten Echoes triggers, creating a token copy of Timestream Navigator with haste.
- If you don't have the city's blessing, the Timestream Navigator token gives you the city's blessing.
- Activate Riptide Laboratory's second ability by paying {1}{U} and tapping it, returning the nontoken Timestream Navigator to your hand from the battlefield.
- Activate the Timestream Navigator token by paying {2}{U}{U}, tapping it and putting it on the bottom of your library from the battlefield, causing you to take an extra turn after this one.
- Repeat each turn.
How to execute this combo
The "Timestream Navigator + Molten Echoes + Riptide Laboratory" combo takes 7 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite turns, Lock.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.