Stasis + Urza, Lord High Artificer + Mechanized Production

Stasis

Urza, Lord High Artificer

Mechanized Production

How it works

1. At the beginning of your upkeep, Stasis and Mechanized Production trigger.
2. Resolve the Mechanized Production trigger, creating a copy of the artifact it is attached to.
3. Activate Urza's first ability by tapping the artifact token, adding .
4. Resolve the Stasis trigger, causing you to pay .
5. Repeat during each of your turns.
6. As long as Stasis is on the battlefield, players skip their untap steps.

This lock works by turning Stasis into a self-sustaining prison for your opponents while you steadily build toward an alternate win condition. Because Stasis skips everyone's untap steps, it would normally choke out your own mana, but Urza, Lord High Artificer steps in to let you tap your artifacts directly for blue mana. You can then use that very mana to pay Stasis's upkeep cost. Meanwhile, Mechanized Production steadily multiplies your artifacts turn after turn, safely protected behind the Stasis lock until it hits the eight-copy threshold to instantly win you the game.