Demonic Consultation, and Timestream Navigator

Prerequisites

• Demonic Consultation in hand
• Timestream Navigator on the battlefield
• the first turn, with each extra turn available

Steps

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

Results

• Infinite turns
• Exile your library
• Skip your draw step