Extravagant Replication + Time Stretch + Timeless Witness

Mana needed: {8}{U}{U} each other turn

GU identity

Commander legal

The 3 combo pieces

• Extravagant Replication
• Time Stretch
• Timeless Witness

How to execute it

1. Cast Time Stretch by paying its mana cost, causing you to take two extra turns after this one.
2. Move to your next turn.
3. At the beginning of your upkeep, Extravagant Replication triggers, creating a token copy of Timeless Witness.
4. When the Timeless Witness token enters the battlefield, it triggers, returning Time Stretch from your graveyard to your hand.
5. Repeat during your second turn.

What the combo produces

• Infinite turns
• Lock