Necromancer's Magemark + Charming Scoundrel + Ashnod's Altar + Chromatic Orrery

Necromancer's Magemark

Charming Scoundrel

Ashnod's Altar

Chromatic Orrery

How it works

1. Cast Charming Scoundrel by paying 2.
2. When Charming Scoundrel enters the battlefield, it triggers, creating a Wicked Role token attached to it.
3. Activate Ashnod's Altar by sacrificing Charming Scoundrel, adding 2.
4. Charming Scoundrel is returned to your hand instead of being put into your graveyard due to Necromancer's Magemark.
5. The Wicked Role token that was attached to Charming Scoundrel triggers, causing each opponent to lose 1 life.
6. Repeat.

This ingenious loop turns a simple pirate into a relentless engine by leveraging Ashnod's Altar to repeatedly sacrifice Charming Scoundrel for mana. The crucial safety net is provided by Necromancer's Magemark, which rescues the scoundrel from the graveyard every time it dies and bounces it right back to your hand for another round of casting. Meanwhile, the Wicked Role token created upon entry triggers its life-drain ability whenever the enchanted creature leaves the battlefield, turning the recycling process into a lethal weapon. Though you won't need Chromatic Orrery to fund this specific colorless loop, its presence on the battlefield effortlessly fixes your mana and rounds out the deck's explosive potential.