Emeria Shepherd + World Shaper + Lithatog + Shilgengar, Sire of Famine
Emeria Shepherd
World Shaper
Lithatog
Shilgengar, Sire of Famine
Infinite artifact tokensInfinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite self-millInfinite landfall triggersReturn all nonland permanents from your graveyard to the battlefieldInfinite Blood tokensInfinitely large creature until end of turn
How it works
Activate Lithatog by sacrificing a land.
Repeat step 1 until you control no lands.
Activate Shilgengar by sacrificing World Shaper.
When World Shaper dies, it triggers, return all lands from your graveyard to the battlefield tapped.
When the lands enter, Emeria Shepherd triggers that many times.
Resolve an Emeria Shepherd trigger that was triggered by a Plains, returning World Shaper from your graveyard to the battlefield.
Resolve all remaining Emeria Shepherd triggers.
Resolve the Shilgengar ability.
Repeat
This intricate graveyard loop turns your resource-management engine into an infinite recycling machine, powered by Shilgengar, Sire of Famine sacrificing World Shaper to fuel the Blood token economy. Once World Shaper hits the graveyard, its death trigger dumps all your sacrificed lands right back onto the battlefield, creating a massive wave of landfall triggers for Emeria Shepherd. Because those lands enter as Plains, Emeria Shepherd replaces its usual hand-return with a direct ticket back to the battlefield for World Shaper, setting the stage to use Lithatog's land-sacrificing ability to clear your board and do it all over again.