Which means that starter swaps won't help, because starters don't answer upgrades.
If you don't have Versatile Style, Nature Reclaims, or Assimilate, you have to prevent them getting to Tech II (very difficult if they play conservatively) or kill off all their attackers (very difficult if they have haste in Starter/Tech I and/or Birds). Peace engine is the same, but I think a bit slower than MoLaC simply because it has more necessary pieces. So does every deck need Grave, Mid, or Vir?
I guess in Blue, D.Alpha is a soft answer, since you can keep Mad Man and Rambaster from generating runes. But with the boosts available to Growth/Blood, that's not a guarantee. Art of War works a bit better, but ye have to get Oni to max first, and it only lasts a turn. In Black, you have Carriorn Curse, but you have to get lucky and have your draw match up with theirs.
In Red, the cards that should be answers (Chaos Mirror, Kidnapping) don't work because one hits printed values and the other steals the unit but not the bonus. If anyone has suggestions for me for when I go up against MoLaC (and the threat of Earthquake, and Gunship), I'm welcome to them!