In that Top 15 Archetype that could easily be 6 or 8 per attack
(Though The Lost Caverns of Ixalan will not have Play Boosters, Special Guests is debuting with that set, so you should already have some idea of what those will look like.) In addition to the Special Guests , there will be 40 cards that are reprints without new art
Players can't take actions in between the time you manifest dread X times and the time you put +1/+1 counters on them
If you do, turn the card over so that its back face, Hades, Sorcerer of Eld, is face up
There are several more scenes in the set you can assemble with cards found in Draft, Set, and Collector Boosters
Then you can animate them with effects like March of the Machines and swing with them, and now they can block