This clever loop relies on **Emry, Lurker of the Loch** and **Displacer Kitten** working in tandem to continuously recycle cheap artifacts. When you tap Emry to cast **Dark Sphere** from your graveyard for zero mana, Displacer Kitten's avoidance ability triggers, blinking **Pestermite** so that its entry trigger can untap Emry. Because Dark Sphere can be recast repeatedly through Emry and sacrificed right back to its own ability, you can cycle the artifact infinitely to generate endless enter-the-battlefield, leave-the-battlefield, and sacrifice triggers.