Similarly, if a cost includes causing you to gain life (like the alternative cost of an opponent's Invigorate does), that cost can't be paid
If you can start generating these Construct tokens more than once per turn, it gets out of hand quickly as their internal buffs become more and more relevant
Of course, while most all of these are effects that your opponents can enjoy, often you can set your deck up to break the symmetry and take better advantage of these cards than your opponents can
In metric terms, that equals 63.5 millimeters by 88.9 millimeters or 6.35 by 8.89 centimeters
At three mana and above, there are actually a huge number of zombie lords and other payoffs, but you can only fit a few 3+ mana cards in an aggressive deck so it was simply never viable to start your curve that late
Out of all the new mechanically unique Final Fantasy Commander cards, Sphere Grid is currently the most expensive