Aluren + Mischievous Pup + Glasspool Mimic // Glasspool Shore

Aluren

Mischievous Pup

Glasspool Mimic // Glasspool Shore

How it works

1. Cast Glasspool Mimic by paying 0 due to Aluren, choosing to have it enter the battlefield as a copy of Mischievous Pup.
2. When Glasspool Mimic enters the battlefield, it triggers, returning Mischievous Pup from the battlefield to your hand.
3. Cast Mischievous Pup by paying 0 due to Aluren.
4. When Mischievous Pup enters the battlefield, it triggers, returning Glasspool Mimic from the battlefield to your hand.
5. Repeat.

This clever loop turns Aluren into an engine for infinite casts and triggers by exploiting how copy effects interact with bounce abilities. You cast Glasspool Mimic for free, having it enter as a copy of Mischievous Pup so its triggered ability can bounce the original Mischievous Pup right back to your hand. Then, you use Aluren to instantly recast that same Mischievous Pup for free, whose own entry trigger sends Glasspool Mimic back to your hand to repeat the cycle indefinitely.