Activate Hearthhull by paying 1, tapping it and sacrificing a land.
If Hearthhull has eight or more charge counters on it, it triggers, causing each opponent to lose 2 life.
Resolve the Hearthhull ability, causing you to draw two cards and allowing you to play an additional land this turn.
Play the land from your graveyard.
When the land enters the battlefield, Tireless Provisioner triggers twice due to Elesh Norn, creating two artifact tokens.
Activate Clock of Omens by tapping the artifact tokens, untapping Hearthhull.
Repeat.
This intricate engine feeds on sacrifice, turning the simple act of losing a land into a devastating loop of life drain and card advantage. Hearthhull, the Worldseed acts as the primary sacrifice outlet, letting you cycle lands away to draw cards and trigger its drain ability while advancing toward its animated form, all while Conduit of Worlds ensures your sacrificed lands can be played right back out of the graveyard. Every time that land hits the battlefield, Tireless Provisioner rewards you with tokens, doubled thanks to Elesh Norn, Mother of Machines padding your board with extra artifacts. Finally, Clock of Omens harnesses those newly minted artifacts to untap Hearthhull, resetting the entire loop so you can repeat the process indefinitely.