Timestream Navigator + Echocasting Symposium

Prerequisites

• You control nine or more permanents and/or have the city's blessing.

Steps

1. 1Cast Echocasting Symposium by paying , creating a token copy of Timestream Navigator and exiling Echocasting Symposium.
2. 2If you don't have the city's blessing, the Timestream Navigators will give you the city's blessing.
3. 3Activate the oldest Timestream Navigator 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.
4. 4Move to your next turn. At the beginning of your precombat main phase, Echocasting Symposium's paradigm ability triggers, causing you to cast a copy of it from exile. Resolve the copy, creating a token copy of Timestream Navigator.
5. 5Repeat from step 3.

Effects

• Infinite turns
• Lock