Cow-tapult is a reference to a scene early in the film, in which French soldiers occupying a castle use a catapult to fling a cow (the flavor text is French for Fetch the cow!) and other barnyard animals at King Arthur and his knights
These were mostly Japanese-only sets, such as the Lugia and Great Rockets Mewtwo cards that came bundled with the game, and the Intro Pack, which had 15 exclusive cards
Shrewd and intelligent, in between elegant dinners and philosophical discourses, he took over a dwarven fortress in Ulgrotha and slowly built a base of power, the Dark Barony
I'm down to one right now, but I might drop to zero maindecked
Sure, you won't see Poison Dart Frog appear in many eternal formats, and even that much utility might not be enough for Modern, but in slower Magic: The Gathering formats like limited or Commander, this little guy is an easy addition