Miniaturized Lab – On turns 3, 4, and 5, no cards can be added here.

It’s one thing to have zones that lock out certain cost cards or limit how many can be played or whatever. But this zone just stops being a part of your match for three turns, some of the most important mid-match turns in the game, too. And like with the other zones on this list, if you get a few of these mixed together with Miniaturized Lab, you better be ready for everything to end. At least matches are short.