While they sometimes enter the battlefield tapped, man-lands are another way to out-grind your opponents removal or chip in enough damage for lethal, even through a potential board wipe
I dont expect this to get more play in Standard than Foundry of the Consuls, a card you are about to google because you dont know what it does
With Spree multiple additional costs could be paid to activate multiple modes of the spell
Just two mana for three shield counters is excellent, and in counter-centric decks you're likely also going to be running things like Doubling Season to make those shields last even longer
You won't always be able to get both Madam Mim and Fairy Godmother to stick on the board long enough to pull this off, but with their reduced Shift cost of three and two-ink respectively, you'll likely get both of them down on the board at the same time fairly often
Older sealed sets can go higher when stock dries up