Demonic Consultation + Timestream Navigator

Prerequisites

• You have the city's blessing
• You have six or more cards in your library.

Steps

1. 1During your upkeep, activate 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.
2. 2Move to your draw step, and draw a card.
3. 3Cast Demonic Consultation by paying , naming Timestream Navigator and exiling your entire library except Timestream Navigator and putting Timestream Navigator into your hand.
4. 4Cast Timestream Navigator by paying .
5. 5During your extra turn's upkeep, activate 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.
6. 6Move to your draw step, drawing Timestream Navigator.
7. 7Repeat from step 4.

Effects

• Exile your library
• Infinite turns
• Lock
• Skip your draw steps