Orthion, Hero of Lavabrink + Timestream Navigator

Mana needed: {3}{U}{U}{R} each turn

UR identity

Commander legal

The 2 combo pieces

• Orthion, Hero of Lavabrink
• Timestream Navigator

What must be in place

You have the city's blessing and/or control nine or more permanents.
Orthion does not have summoning sickness.

How to execute it

1. Activate Orthion by paying {1}{R} and tapping it, creating a token copy of Timestream Navigator with haste.
2. If you don't have the city's blessing, the Timestream Navigator token gives you the city's blessing.
3. 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.
4. Repeat each turn.

What the combo produces

• Infinite turns
• Lock