These tokens can fuel various win conditions, like pinging opponents with Goblin Bombardment or, if they share a name (which tokens do), proccing a win with Mechanized Production
It's been split across 18 cards from the set (and cleverly drawn so that every 63 x 88mm stretch of the piece makes sense as its own card)
(Note that Borderland Ranger and other spells which put Lands in our hand have value - they can make certain we hit our drops, which is a valuable thing
Sideboard Usefulness: Dismember - It'll cost you 4 life to pay it, but can save you big in removing a Tarmogoyf before it gets too big to deal with
Boosting your team with +1/+0 means your creatures always swing above their weight class, and every time one dies, Judith gets to ping any target
It's possible they won't make a public announcement until this program rolls out to all stores later this year