Dour Port-Mage + Mnemonic Wall + Time Walk

Dour Port-Mage

Mnemonic Wall

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