When a unit is affected by Smoke Screen (which reduces might to a minimum of 1), how do subsequent might modifications interact with that reduction?

Ruling: When Smoke Screen or similar effects that reduce might to a minimum resolve, they snapshot the current might of the unit at that moment and calculate the reduction amount. That calculated reduction then applies as a passive modifier for the rest of the turn, regardless of any subsequent might increases or decreases.

Sequence:

• Determine the unit's current might when Smoke Screen resolves (including all passive bonuses currently active)
• Calculate the reduction amount based on that might (reducing to minimum 1)
• Apply that calculated reduction as a fixed passive modifier for the rest of the turn
• Any subsequent might modifications add to or subtract from the total, but the Smoke Screen reduction amount remains constant

Nuances:

• Passive abilities (using "while") apply at all times their conditions are true, so they are included when calculating the snapshot
• A 3 might unit reduced by Smoke Screen becomes 1 might (reduction of -2); if you then add +2 might, it becomes 3 might total
• A 4 might unit (2 base + 2 from passives) reduced by Smoke Screen becomes 1 might (reduction of -3); the -3 continues to apply even if other modifiers change