This clever loop relies on a self-referential trigger between two copies of Enduring Scalelord—one being the original and the other a hasty token created by Kiki-Jiki, Mirror Breaker. Once you place a single +1/+1 counter on either of them, its counterpart’s triggered ability sees the action and triggers in response, placing a counter on itself. That new counter then triggers the first Scalelord right back, creating an endless, automated cycle of growth. Because the token copy brought to life by Kiki-Jiki, Mirror Breaker shares the exact same text box, the two dragons endlessly pump each other to infinitely large proportions, leaving you with an unstoppable army of massive threats.