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 Fractured Realm, creating two artifact tokens.
Activate Clock of Omens by tapping the artifact tokens, untapping Hearthhull.
Repeat.
This clever loop is anchored by Hearthhull, the Worldseed, which turns land sacrifices into card draw and, once fully powered up, drains your opponents' life away. To keep the engine running, Icetill Explorer lets you continuously replay those sacrificed lands right out of your graveyard, while its landfall mill effect feeds the process. Meanwhile, Tireless Provisioner generates artifact tokens whenever those lands enter the battlefield, and because Mirror Room // Fractured Realm doubles your triggered abilities, you get twice the token bounty for every land drop. Finally, Clock of Omens ties the entire laboratory together by tapping those newly minted artifacts to untap Hearthhull, creating a perpetual motion machine of land recycling and resource generation.