This kills or counters the majority of commanders with little fuss
This is quite similar to what Pokemon TCG 's Gold Cards do, as they are special rares one can get from any set, and they have a gold finish all over the card, often depicting characters, items, or Pokemon themselves from the series
This is easy to achieve with things like sac lands and you can get away with about three or so
Kicking off the multicolor cards, Astor, Bearer of Blades, gives us a solid role player in decks using vehicles or equipment
Either your opponent loses 7 life per turn, or loses their creatures and gives you card advantage
Arcums Astrolabe is solidly in the category of design mistakes, breaking down color and synergy barriers way too easily, and it makes Blood Moon a joke