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 Tracker triggers twice due to Elesh Norn, creating two artifact tokens.
Activate Clock of Omens by tapping the artifact tokens, untapping Hearthhull.
Repeat.
This fascinating engine turns the relentless land-sacrificing power of Hearthhull, the Worldseed into a closed loop by turning your resources into untaps. Every iteration begins when Hearthhull sacrifices a land to draw cards and feed its own damage-dealing static ability, which is cleanly replayed from your graveyard using Ramunap Excavator. The moment that land enters the battlefield, Tireless Tracker responds by generating Clue tokens—an output doubled entirely by Elesh Norn, Mother of Machines's presence to supply two artifacts instead of one. Finally, Clock of Omens steps in to utilize those fresh tokens by tapping them to untap Hearthhull, resetting the entire process and letting you repeat it indefinitely.