They are conditional, but can be the exact removal you need for pretty much any board
negate the Summon, then apply the appropriate effect
Because this deck relies heavily on Hypnotoxic Laser and Miracle Powder to take Prizes, Keldeo- EX in general can throw a highly disruptive pony wrench into the mechanics of this deck because of Rush In , which allows it to remove Special Conditions
However, given that they don't seem like a mechanic exclusive to March of the Machine, but rather a type we'll see in Magic: The Gathering from now on, it's only a matter of time before cards come out that are good enough to be present in high-power level Metagames
Likely youre already aware of most them, but havent gotten around to add them yet
Finally, being in two colors, not to mention coming out of my momentary insanity, Ive added the playset of Urzas Saga