This clever loop relies on the constant cycling of Felidar Guardian and Reveillark to generate an unstoppable cascade of triggers and resources, all fueled by Thermopod. As Felidar Guardian enters the battlefield, its blink trigger targets Reveillark, but before it resolves, Thermopod steps in to sacrifice the cat for red mana. This forces Reveillark to leave the battlefield and trigger its own ability, which reaches into your graveyard to pull Felidar Guardian right back out alongside another small helper. Because Reveillark's leave-the-battlefield trigger returns Felidar Guardian to the fray, the entire sequence resets, allowing you to feed Thermopod endlessly while churning out infinite sacrifice triggers, enter-the-battlefield effects, and red mana.