The Decks Four of the five Commander decks coming with March of the Machine are three-color decks, while one is two color
You can cast it extremely cheaply using the first effect which reduces the cost by 1 for every permanent sacrifice this turn and has haste which means the card completely ignores summoning sickness
While you have to wait a little longer for Wedding Festivity, this white enchantment is good enough to see play in many Magic formats, and it was a mainstay of its Standard format due to the sheer value it provides
Older cards sometimes dont have set symbols and you have to review a variety of factors including the copyright symbol and if theres a date next to it to figure out what set the card is from
One mana, full hand information, and the ability to strip any nonland card before it ever hits the stack
Aura of Silence (T1, Ext, S, Block) Aura of Silence started out being a sideboard card that people gradually graduated to the main deck