march of the machines aftermath collector booster box mtg MtG: MACHINE: AFTERMATH EPILOGUE BOOSTER with a combination of 1–3 card(s) of rarity Rare or higher and 2–4 Uncommon cards [MAT] March of The Machine:

The card can be Special summoned provided there is a Sinfoil Spoils card in either players Graveyard, forcing your opponent to set spell and trap cards before activating with the once-per-turn ability to target one card on either field and destroy them whenever such a card is set on the field while in the Monster Zone

As you can see, Sliver Legion doesn't appear to be run as a leader, which makes it the exception on this list

this set covers Magics greatest hits and its the perfect way to start playing with your friends

The cost reduction means itll be cheaper to bring out as the game continues, and the draw power amplifies as it sticks around