Dour Port-Mage + Eternal Witness + Time Walk

Dour Port-Mage

Eternal Witness

Time Walk

How it works

1. Cast Time Walk by paying its mana cost, causing you to take an extra turn after this one.
2. Cast Eternal Witness by paying its mana cost.
3. When Eternal Witness enters the battlefield, it triggers, returning Time Walk from your graveyard to your hand.
4. Move to your next turn.
5. Activate Dour Port-Mage by paying 1 and tapping it, returning Eternal Witness from the battlefield to your hand.
6. Dour Port-Mage triggers, causing you to draw a card.
7. Repeat.

This vintage loop centers around the recursive power of Eternal Witness and Time Walk, letting you chain extra turns indefinitely by buying back your sorcery the moment it resolves. Dour Port-Mage plays a dual role here, providing the mechanical bridge to bounce the Witness back to your hand via its activated ability while simultaneously drawing you a card each time due to its triggered ability when the creature leaves the battlefield without dying. Together, these three cards lock down the game by ensuring you control every future turn while constantly churning through your deck.