Dour Port-Mage + Mnemonic Wall + Notorious Throng

Dour Port-Mage

Mnemonic Wall

Notorious Throng

How it works

1. Deal combat damage to an opponent using a Rogue.
2. Cast Notorious Throng for its prowl cost by paying 5, causing you to take an extra turn after this one.
3. Cast Mnemonic Wall by paying its mana cost.
4. When Mnemonic Wall enters the battlefield, it triggers, returning Notorious Throng from your graveyard to your hand.
5. Move to your next turn.
6. Activate Dour Port-Mage by paying 1 and tapping it, returning Mnemonic Wall from the battlefield to your hand.
7. Dour Port-Mage triggers, causing you to draw a card.
8. Repeat.

This cunning loop relies on Notorious Throng to secure a stream of extra turns, cast with its prowl cost thanks to the damage dealt by an initial Rogue attacker. Once the spell resolves and ends up in your graveyard, Mnemonic Wall steps in upon entering the battlefield to fish it right back to your hand for the next cycle. To reset this process, Dour Port-Mage uses its activated ability to bounce the Wall back to your hand, which simultaneously triggers the Mage's passive ability to net you an extra card draw every single iteration.