Dour Port-Mage + Possessed Skaab + Notorious Throng

Dour Port-Mage

Possessed Skaab

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 Possessed Skaab by paying its mana cost.
4. When Possessed Skaab 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 Possessed Skaab from the battlefield to your hand.
7. Dour Port-Mage triggers, causing you to draw a card.
8. Repeat.

This clever engine transforms a single successful strike from a Rogue into an endless sequence of extra turns using Notorious Throng cast for its prowl cost. Once you replay Possessed Skaab to continually salvage that spell from your graveyard, Dour Port-Mage steps in to both fund the loop's mana ability and draw you extra cards by bouncing the Skaab back to your hand safely without letting it die.