Wight of Precinct Six

• WWizards of the Coast2017-11-17
  Official Ruling
  Wight of Precinct Six’s ability applies only while it’s on the battlefield. In all other zones, it’s a 1/1 creature.
• WWizards of the Coast2017-11-17
  Official Ruling
  If Wight of Precinct Six is dealt lethal damage at the same time as a creature an opponent controls, they’re destroyed at the same time. It won’t get an additional +1/+1 from its ability in time to save it.

Rulings via Scryfall