Each creature you control gains an ability that puts +1/+1 counters on itself equal to the mana it produces whenever you tap it for mana
Put the rest on the bottom in a random order.) At the beginning of your end step, discover 5
The decks were all listed online, on Amazon by the looks of it, alongside descriptions that reveal a bit more about them
Its fantastically simple to set up infinite loops with cards like Banishing Knack or Retraction Helix to infinitely bounce 0-cost artifacts alongside Mirran Spy or other creatures that untap themselves when you cast an artifact
It takes a lot of learning but once youre comfortable it becomes a very powerful deck, so dont be discouraged to begin with and keep playing
The Sideboard Honestly, Im so confident this deck is the best deck right now that Im willing to play some useless dual lands to support a double-splashed sideboard card because its the best thing I can do in the mirror match