Dour Port-Mage, Time Walk, and Archaeomancer

Prerequisites

• Dour Port-Mage on the battlefield
• Time Walk in hand
• Archaeomancer in hand
• available plus enough mana to cast Time Walk and Archaeomancer each turn

Steps

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

Results

• Infinite turns