Emiel the Blessed + Agatha of the Vile Cauldron + The Third Doctor

Emiel the Blessed

Agatha of the Vile Cauldron

The Third Doctor

How it works

1. Activate Emiel the Blessed by paying 1, blinking The Third Doctor.
2. When The Third Doctor enters the battlefield, it triggers, creating a Treasure artifact token.
3. Activate the Treasure by tapping and sacrificing it, adding 1.
4. Repeat.

This loop sets up an efficient perpetual motion machine by leveraging the cost-reduction prowess of Agatha of the Vile Cauldron, whose power slashes the activation cost of Emiel the Blessed's blink ability down to a single mana. When you activate Emiel the Blessed to exile The Third Doctor and return it to the battlefield, The Third Doctor triggers upon re-entry to create a Treasure token. You can then immediately sacrifice that very same Treasure token for the exact mana needed to pay for Emiel the Blessed's next activation, looping the process to generate infinite enters-the-battlefield and leaves-the-battlefield triggers.