Mistveil Plains + Officious Interrogation + Sunforger + Time Sieve

Mana needed: {3}{R}{W}, plus an additional {W}{U} per opponent as necessary each turn

WUBR identity

Commander legal

The 4 combo pieces

• Mistveil Plains
• Officious Interrogation
• Sunforger
• Time Sieve

What must be in place

You control at least two white permanents.
Sunforger attached to any creature you control.

How to execute it

1. Activate Sunforger by paying {R}{W} and unattaching it, searching your library for Officious Interrogation and casting it without paying its mana cost, plus an additional {W}{U} 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 {W} and tapping it, putting Officious Interrogation from your graveyard onto the bottom of your library.
5. Activate Sunforger's equip ability by paying {3}, attaching it to any creature you control.
6. Repeat each turn.

What the combo produces

• Infinite turns
• Lock