Hearthhull, the Worldseed + Clock of Omens + Eusocial Engineering + Yarok, the Desecrated + Icetill Explorer

Hearthhull, the Worldseed

Clock of Omens

Eusocial Engineering

Yarok, the Desecrated

Icetill Explorer

How it works

1. Activate a land by tapping it, adding at least 1.
2. Activate Hearthhull by paying 1, tapping it and sacrificing a land.
3. If Hearthhull has eight or more charge counters on it, it triggers, causing each opponent to lose 2 life.
4. Resolve the Hearthhull ability, causing you to draw two cards and allowing you to play an additional land this turn.
5. Play the land from your graveyard.
6. When the land enters the battlefield, Eusocial Engineering triggers twice due to Yarok, creating two artifact tokens.
7. Activate Clock of Omens by tapping the artifact tokens, untapping Hearthhull.
8. Repeat.

This loop turns the simple act of sacrificing a land into a self-sustaining engine of attrition and card advantage, fueled by Hearthhull, the Worldseed's activated ability to churn through your deck and draw two cards at the cost of a land. To keep the engine running, Icetill Explorer lets you continuously play that sacrificed land right back out of your graveyard, while its extra land drop allowance and Hearthhull's own effect ensure you never run out of plays. Every time that land hits the battlefield, Eusocial Engineering triggers twice thanks to Yarok, the Desecrated's doubling effect, generously supplying a pair of fresh artifact tokens. Those tokens are then put straight to work by Clock of Omens, tapping themselves to untap Hearthhull so you can repeat the whole cycle—while every sacrificed land simultaneously drains your opponents down to zero via Hearthhull's native triggered ability.