Random Generator gave me Armored Ascension and Balefire Liege. That's an odd way to word an ability, I know, but it was the simplest way to do it that I can think of. Does it make sense, though?

I think it makes sense. It's equivalent to "~'s power and toughness are the lower of twice the number of Mountains you control and twice the number of Plains you control", right? Probably too fiddly to actually be printed, but rather fun for a custom set :)

Heh, yeah, I suppose you can look at it that way. But don't tell the kids playing at home.