Lumra, Bellow of the Woods + Springheart Nantuko + Stone-Seeder Hierophant + Trenching Steed
Lumra, Bellow of the Woods
Springheart Nantuko
Stone-Seeder Hierophant
Trenching Steed
Infinite creature LTBInfinite creature ETBInfinite death triggersInfinite self-millInfinite landfall triggersInfinite mana lands you control can produceInfinite colored manaPut all lands from your library and graveyard onto the battlefield tappedInfinite untap of lands you control
How it works
Play any land.
When the land enters the battlefield, Springheart Nantuko triggers.
Holding priority, activate Trenching Steed by sacrificing a land.
Repeat step 3 until you control no lands.
Resolve the Springheart Nantuko trigger, causing you to pay 1 to create a token copy of Lumra.
Put the token Lumra into your graveyard due to the legend rule.
The Lumra token's enter-the-battlefield ability triggers, causing you to mill four cards and returning all lands from your graveyard to the battlefield tapped.
When the lands enter the battlefield, Springheart Nantuko and Stone-Seeder Hierophant trigger that many times.
Resolve a Stone-Seeder Hierophant trigger, untapping it.
Activate Stone-Seeder Hierophant by tapping it, untapping a land.
Activate the land by tapping it, adding at least .
Repeat from step 9 for each remaining Stone-Seeder Hierophant trigger.
Resolve all but one Springheart Nantuko trigger, choosing not to pay and creating that many 1/1 Insect creature tokens.