This loop turns a modest halfling into an endless engine of life and artifacts by leaning heavily on cost-reduction magic. With Training Grounds on the board, the activation fee for Emiel the Blessed drops from three mana down to just a single generic mana, making it cheap enough to repeatedly cycle your other permanents. As you use Emiel the Blessed to blink Prosperous Innkeeper over and over, every re-entry spawns a fresh Treasure token that you immediately crack for the exact mana needed to pay for the next blink. Meanwhile, Prosperous Innkeeper's triggered ability quietly rewards all this flickering by padding your life total into the stratosphere alongside the infinite enter-the-battlefield and leave-the-battlefield counts.