Extravagant Replication + Time Walk + Timeless Witness

GU identity

The 3 combo pieces

What must be in place

You have enough mana to cast Time Walk each turn.

How to execute it

  1. Cast Time Walk by paying its mana cost, causing you to take an extra turn 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 Walk from your graveyard to your hand.
  5. Repeat.

What the combo produces