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 Roaming Throne, creating two artifact tokens.
Activate Clock of Omens by tapping the artifact tokens, untapping Hearthhull.
Repeat.
This fascinating engine transforms land sacrifices into a continuous loop of card draw and artifact creation, powered by Hearthhull, the Worldseed as both your sacrifice outlet and win condition. With Icetill Explorer letting you continually play lands straight from your graveyard alongside your extra land drop, every sacrifice feeds right back into the battlefield. Tireless Tracker capitalizes on these land drops by generating Clues, and thanks to Roaming Throne doubling those landfall triggers, you get double the artifact tokens to work with. Finally, Clock of Omens ties the whole room together by tapping those newly minted artifacts to untap Hearthhull endlessly, draining your opponents out with repeated land sacrifices.