Dour Port-Mage + Ardent Elementalist + Time Walk

Dour Port-Mage

Ardent Elementalist

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 Ardent Elementalist by paying its mana cost.
3. When Ardent Elementalist 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 Ardent Elementalist from the battlefield to your hand.
6. Dour Port-Mage triggers, causing you to draw a card.
7. Repeat.

This vintage-legal loop achieves infinite turns by recycling a single copy of Time Walk through the recurring trigger of Ardent Elementalist. To bridge the mana and mechanical gap, Dour Port-Mage plays a dual role: its activated ability manually bounces the Elementalist back to your hand for re-casting, while its passive triggered ability rewards that bounce by drawing you a card every single iteration.