If Lee Sin, Centered dies, do other characters with damage equal to their might survive if they previously had +2 might from Lee Sin's effect?

Ruling: If Lee Sin dies to combat damage, other units will be healed before any cleanup happens and therefore won't die even if they have damage equal to their (now reduced) might.

Sequence:

• Lee Sin dies to combat damage
• Damage is healed from all units during Combat Cleanup
• State-based actions check for units with damage >= might
• Units survive because they were healed before the check

Nuances:

• Damage is only healed during Combat Cleanup (which occurs after combat resolves) and at the end of each player's turn
• Open showdowns do not have Combat Cleanup, so units are not healed after showdowns that don't involve combat
• After any combat, damage is cleared, so you can charm another unit into combat and your unit will survive (assuming no other effects)