Felidar Guardian + Reveillark + Carrion Feeder

Felidar Guardian

Reveillark

Carrion Feeder

How it works

1. Cast Felidar Guardian by paying 3.
2. When Felidar Guardian enters the battlefield, it triggers, targeting Reveillark.
3. Holding priority, activate Carrion Feeder by sacrificing Felidar Guardian.
4. Resolve the Felidar Guardian trigger, blinking Reveillark.
5. When Reveillark leaves the battlefield, it triggers, returning Felidar Guardian and up to one other creature with power 2 or less from your graveyard to the battlefield.
6. Repeat from step 2.

This classic loop turns the graveyard into a revolving door by leveraging Reveillark's leaves-the-battlefield trigger to constantly recycle small threats. By sacrificing Felidar Guardian to Carrion Feeder in response to its own enter-the-battlefield trigger, you force Reveillark to blink and subsequently trigger its own resurrection ability. Because Reveillark can pull Felidar Guardian right back out of the graveyard along with another creature of power 2 or less, you can endlessly repeat the process to grow an infinitely massive Carrion Feeder while generating boundless entry, exit, and sacrifice triggers.