When a unit with buffs is reduced to minimum 1 Might by Thousand-Tailed Watcher's -3 debuff, does it gain additional Might from subsequent modifiers like Master Yi's +2 when defending, or does the Watcher's debuff continue to apply?

Ruling: When Thousand-Tailed Watcher is played, its -3 Might reduction occurs once in that moment and is not a continuous ability. Subsequent modifiers like Master Yi's +2 when defending apply normally after the Watcher's effect has resolved.

Sequence:

• Unit starts at 2 Might with +1 buff (3 total)
• Thousand-Tailed Watcher applies -3 Might, reducing unit to minimum 1 Might
• When the unit defends, Master Yi's +2 Might applies
• Unit ends at 3 Might

Nuances:

• Buffs do not constantly reapply; they can be reduced by abilities like Watcher just like base Might