Beifong's Bounty Hunters + Carrion Feeder + Open the Graves
Beifong's Bounty Hunters
Carrion Feeder
Open the Graves
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite death triggersInfinite landfall triggersInfinite creature sacrifice triggers
How it works
Activate Carrion Feeder by sacrificing another nonland creature.
When the creature dies, Beifong's Bounty Hunters triggers, earthbending a land you control.
Resolve the Carrion Feeder ability.
Activate Carrion Feeder by sacrificing the earthbent land.
When the land dies, Open the Graves and Beifong's Bounty Hunters trigger.
Resolve the Beifong's Bounty Hunters trigger, returning the land from your graveyard to the battlefield.
Resolve the Open the Graves trigger, creating a creature token.
Resolve the Carrion Feeder ability.
Repeat.
This loop relies on an engine where Carrion Feeder acts as the sacrifice outlet that continuously feeds into your death and sacrifice triggers. Whenever a creature goes to the graveyard, Beifong's Bounty Hunters converts its power into a massive land-creature, while Open the Graves ensures that every fallen nontoken creature leaves behind a Zombie token to keep the cycle going. Because Beifong's Bounty Hunters's earthbent land returns to the battlefield tapped whenever it dies, you can repeatedly sacrifice that same animated land to Carrion Feeder, turning your land drops into endless +1/+1 counters and infinite triggers.