How do might reduction spells like Smoke Screen interact with a buffed Stalwart Poro that has multiple sources of might increases (base, shield, buff, Master Yi effect)?

Ruling: Might increases are applied before might reductions. Each Smoke Screen snapshots the unit's current might when played and applies a continuous reduction. The first Smoke Screen sees the Poro at 6 might and applies -4 might continuously. The second Smoke Screen then sees the Poro at 2 might (6 - 4) and applies -1 might continuously, for a total of -5 might reduction. During combat, the Poro will be at 1 might (6 - 5, minimum 1). After combat when shield and Yi passive expire, the Poro will be at -2 might (2 base + 1 buff - 5 from Smoke Screens) but will not die unless damage is assigned to it.

Sequence:

• Calculate total might with all increases (base + shield + buff + Yi passive = 6)
• First Smoke Screen sees 6 might, applies -4 might continuously
• Second Smoke Screen sees 2 might (6 - 4), applies -1 might continuously
• Total continuous reduction is -5 might
• During combat: 1 might (minimum enforced when effect applied)
• After combat: -2 might (temporary bonuses expire but reductions remain)

Nuances:

• The "to a minimum of 1" clause is only checked when the effect is applied, then the reduction continues regardless of how might changes afterward
• Units with negative might do not die unless they have non-zero damage assigned to them
• Shield and Yi bonus and buff all "remain" but are canceled out by the might reductions