Rulings

• 2008-10-01
  The only difference between a colored artifact and a colorless artifact is, obviously, its color. Unlike most artifacts, a colored artifact requires colored mana to cast. Also unlike most artifacts, a colored artifact has a color in all zones. It will interact with cards that care about color. Other than that, a colored artifact behaves just like any other artifact. It will interact as normal with any card that cares about artifacts, such as Shatter or Arcbound Ravager.
• 2008-10-01
  The first ability works in all zones.
• 2008-10-01
  Since Master of Etherium is an artifact itself, while it’s on the battlefield you will usually control at least one artifact.
• 2020-08-07
  The ability that defines Master of Etherium's power and toughness applies in all zones, not just the battlefield.
• 2020-08-07
  As long as Master of Etherium is on the battlefield, its ability will count itself.
• 2020-08-07
  Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to Master of Etherium may become lethal if other artifacts you control leave the battlefield during that turn, and damage dealt to other artifact creatures you control may become lethal if Master of Etherium leaves the battlefield during that turn.