If I play a Smoke Screen on a Watchful Sentry and it resolves and then someone plays a Discipline on it after, does the Watchful Sentry have 1 might or 3?

If you play Smoke Screen on a Watchful Sentry and it resolves, followed by Discipline, the Watchful Sentry will have 3 Might.

Sequence of Events

1. Smoke Screen resolves: Smoke Screen attempts to reduce the unit's Might by 4. Because Might cannot be reduced below 1, the reduction is effectively 0. This reduction is "snapshotted" at the time of resolution.
2. Discipline resolves: After Smoke Screen has fully resolved, Discipline is played and resolves, granting the unit +2 Might.
3. Final Calculation: The unit's base Might plus the bonus from Discipline results in 3 Might.

Reasoning

• Snapshotting: Effects like Smoke Screen calculate their reduction at the moment of resolution based on the unit's current Might and the "minimum 1" restriction. Once resolved, that specific reduction amount is fixed.
• Layering: Might increases are applied to the unit's base Might, and the snapshotted reduction from Smoke Screen is applied afterward. Because Smoke Screen's reduction was effectively 0, it does not subtract from the subsequent +2 bonus provided by Discipline.

Note: I could not fully verify this ruling against the retrieved rules, as the base Might of Watchful Sentry was not provided in the context.