Infinite Mill Combos

Infinite mill is one of Commander's cleaner win conditions: instead of reducing opponents to zero life, you reduce their libraries to zero cards, and they lose the next time they need to draw. The appeal is that many of the pieces do real work on their own — artifact synergy engines, reanimation value, and sacrifice outlets that generate advantage long before the combo assembles.

Altar of Dementia is the backbone of this archetype. It turns any creature entering the battlefield into a mill trigger, which means any loop that bounces or recurs creatures repeatedly becomes a kill. The combos built around it are diverse in color and strategy: Saffi Eriksdotter and Eternal Witness form a loop with Aluren as the engine, Horde of Notions pairs with Jegantha, the Wellspring and Lightning Greaves to cycle elemental recursion into repeated sacrifice, and Tormod, the Desecrator chains graveyard triggers through Victimize to get there.

The artifact-based lines are equally well-represented. Grinding Station is the other major mill outlet here, showing up in the Karn, Silver Golem plus Salvaging Station engine — a loop that uses zero-cost artifacts dying and returning to keep tapping and untapping Grinding Station indefinitely. Muldrotha, the Gravetide brings Displacer Kitten into the mix, using Sol Ring and Grinding Station to generate a similar loop through permanent-type recursion. Folio of Fancies combined with Smothering Tithe and Clock of Omens represents a more political path, converting opponents' draw into Treasure into untap triggers into mill.

What separates infinite mill from other combo archetypes is redundancy at the pivot point. Altar of Dementia and Grinding Station fill the same terminal role — both convert a loop into a win — so decks that want this line can run both and nearly double their consistency. The loops themselves vary wildly in complexity: the One with the Kami and Lightning Greaves line through Altar of Dementia is compact and efficient; the Deathrender plus Gravedigger plus Eternal Witness chain requires more moving parts and more setup. Picking the right line depends on what the commander naturally supports, not on which combo is abstractly most powerful.

The format rewards infinite mill most when the deck can threaten it on a reasonable turn while also presenting a functional game plan in the games it doesn't combo off. The strongest builds here use pieces that pull double duty — Eternal Witness recurs answers as readily as it completes loops, and Altar of Dementia pressures graveyards incidentally. That overlap between value and combo is what makes the archetype durable across different power levels.