Mishra's Factory in Premodern: the format's most resilient threat and how Winterscape protects it

What it does

Mishra’s Factory is a land that can tap for colorless mana or activate for one colorless mana to become a 2/2 Assembly Worker until end of turn. A second activation for one colorless mana pumps any Assembly Worker creature you control by +1/+1 until end of turn. As a land-based threat, Factory bypasses hand disruption, counterspells, and creature removal that requires a target to already be a creature — it is not a creature until you activate it. This asymmetry is what makes Factory so durable across Premodern’s many disruption strategies.

When it’s played

Mishra’s Factory appears across a broad range of Premodern archetypes.

• Landstill is built around Mishra’s Factory as the primary win condition. The deck uses Standstill to lock out spells and attacks with Factory, pumping it repeatedly to pressure the opponent without triggering Standstill (lands are not spells).
• Mono-Black Control uses Factory as a creature that dodges Swords to Plowshares — black decks often lack good threats, and Factory provides a colorless one immune to most black removal like Diabolic Edict (since it’s not a creature until you activate it).
• Deadguy Ale runs Factory as a backup threat alongside disruption.
• Pox uses Factory in concert with Sinkhole-adjacent effects to generate a threat that survives land destruction and creature wrath.
• Threshold decks sometimes include it as an additional non-creature threat to keep pressure on the opponent.

The math / interaction worth knowing

Mishra’s Factory avoids “destroy target creature” effects until it’s a creature. If your opponent has Swords to Plowshares open, they must wait until you activate Factory before they can target it. This creates a timing game: if you activate Factory to attack or block, you expose it to instant-speed removal. The correct play in many situations is to hold Factory’s activation until the attack step, when the opponent has less opportunity to respond — they may have committed mana to other actions on their main phase.

Factory pumping other Factories is multiplicative. Each activated Factory is an Assembly Worker, and each Factory can pump any Assembly Worker. If you control four Factories, you can: activate two of them to become 2/2s, then use the other two to pump them each +1/+1, resulting in two 3/3 Assembly Workers for eight colorless mana total. This pump-chain scales with the number of Factories in play and is the reason Landstill runs the full four-copy set.

Factory is a land, which means Wasteland kills it. This is the primary vulnerability. Opponents who run Wasteland can destroy a Factory at any point — as a land (before activation) or as a creature (during activation). The Landstill pilot must account for Wasteland in the opponent’s plan and protect their Factory with counters or simply run more copies than the opponent runs Wastelands.

Decklists worth studying

When deck data populates, look for Landstill lists from MTGO Premodern Challenges. The Factory-Standstill pairing is the deck’s core mechanism; understanding how pilots sequence those two cards explains why Factory is the format’s most versatile colorless threat.

Related cards

• Standstill — The enchantment that makes Factory in Landstill so powerful; Factory bypasses Standstill’s condition.
• Wasteland — Factory’s primary vulnerability and also frequently co-played in the same lists.
• Swords to Plowshares — White removal that targets Factory only when it’s a creature; timing activation around this is a key skill.
• Counterspell — Used in Landstill to protect Factory and maintain the Standstill lock.
• Brainstorm — Found in Landstill alongside Factory; sculpts the hand around the Factory plan.
• Diabolic Edict — Black removal that hits Factory when it’s a creature; Pox pilots leverage this in mirrors.