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 Virtue of Knowledge, creating two artifact tokens.
Activate Clock of Omens by tapping the artifact tokens, untapping Hearthhull.
Repeat.
This brilliant engine uses Hearthhull, the Worldseed as a sacrifice outlet that fuels itself while draining your opponents out of the game. Thanks to Icetill Explorer, every land sacrificed can be immediately replayed from your graveyard, a loop supercharged by Virtue of Knowledge doubling the landfall triggers from Tireless Tracker to generate a steady stream of Clue tokens. Clock of Omens then turns those newly created artifacts into fresh fuel by untapping Hearthhull, allowing you to repeat the cycle indefinitely for a near-infinite cascade of card draw, land drops, and life loss.