mtg march of the machines commander precons Magic: Gathering The Machine Deck the core of the Phyrexian armada MTG March of the Machine

Manifest dread basically doubled the number of cards with manifest, though it's far from making the mechanic an evergreen one

If you look at the other decks, their themes have only been featured in a couple of sets

Dog // Cat Token Tokens 2 Dog // Cat (traditional foil, new art) 2 Cat (BNG) // Warrior (AKH) 1 Cat Beast (ZNR) // Shapeshifter (2XM) 1 Cat Beast (ZNR) // Rat (C17) 1 Cat (SNC) // Rat (C17) 1 Cat (SNC) // Dog (SNC) 1 Cat (C17) // Citizen (SNC) 1 Cat (C17) // Dog (SNC) 1 Cat (AKH) // Dog (SNC) 1 Cat (AKH) // Citizen (SNC) 1 Shapeshifter (KHM) // Rat (C17) These cards feature paws -itively wag -nificent new art by Allison Carl, Alayna Danner, Jakob Eirich, Nicole Gustafsson, Fiona Hsieh, Jack Hughes, Nana Qi, and Andrea Radeck

My favorite Avon Forest is his Onslaught one