>>150284014
Antiquities was designed as prequel to Ice Age, explaining why the Ice Age happened. Alliances was also planned, with a unique card back.

Due to a extremely large number of factors, Ice Age was pushed back, and instead Legends was released as the 'stand alone set'. Legends was on so many levels a beautiful disaster that had to happen. It was the first set Richard Garfield washed his hands of.

It's failure however allowed Ice Age to be better polished (for better or worse).