Sunforger, Officious Interrogation, Mistveil Plains, and Time Sieve

Prerequisites

• Sunforger on the battlefield
• Officious Interrogation in the library
• Mistveil Plains on the battlefield
• Time Sieve on the battlefield
• You control at least two white permanents
• Sunforger attached to any creature you control
• , plus an additional per opponent as necessary each turn available

Steps

1. Activate Sunforger by paying and unattaching it, searching your library for Officious Interrogation and casting it without paying its mana cost, plus an additional as necessary
2. Resolve Officious Interrogation, creating at least five Clue artifact tokens
3. Activate Time Sieve by tapping it and sacrificing five Clues, causing you to take an extra turn after this one
4. Activate Mistveil Plains by paying and tapping it, putting Officious Interrogation from your graveyard onto the bottom of your library
5. Activate Sunforger's equip ability by paying , attaching it to any creature you control
6. Repeat each turn

Results

• Infinite turns