If you deal damage to a unit with Voidseeker, then play Thousand Tail Watcher to reduce its Might, does the unit die if the damage now equals or exceeds its reduced Might?

Ruling: Yes, the unit dies. Damage does not reduce Might, so when Thousand Tail Watcher is played, the unit still has its original Might before being reduced. After the Might reduction, a cleanup is performed which checks if damage is greater than or equal to current Might, causing the unit to die.

Sequence:

• Deal 4 damage to a 5 Might unit with Voidseeker (unit has 5 Might, 4 damage)
• Play Thousand Tail Watcher to reduce Might by 3 (unit now has 2 Might, 4 damage)
• Cleanup is performed after the status change
• Damage (4) >= current Might (2), so the unit dies

Nuances:

• Damage does not reduce Might; they are tracked separately
• Cleanup checks occur after status changes