Emiel the Blessed + Biomancer's Familiar + Rapacious Dragon

Emiel the Blessed

Biomancer's Familiar

Rapacious Dragon

How it works

1. Activate Emiel the Blessed by paying 1, blinking Rapacious Dragon.
2. When Rapacious Dragon enters the battlefield, it triggers, creating two Treasure artifact tokens.
3. Activate a Treasure by tapping and sacrificing it, adding 1.
4. Repeat.

This sparkling mana-positive loop centers on Emiel the Blessed, whose blink ability is normally restricted by its cost, but Biomancer's Familiar steps in to slash that activation fee down to just a single generic mana. With the cost reduced, blinking Rapacious Dragon becomes completely self-sustaining; every time the Dragon re-enters the battlefield, it generates two fresh Treasure tokens to fund the next repetition. The Treasures easily cover the discounted {1} required to activate Emiel the Blessed again, leaving you with an endless surplus of mana and every associated artifact and creature trigger you could ever want.