The thing was that you can cheat it too easily into play and after youve done that, its just way too efficient an engine
Eject, Cornered by Black Mages, Ice Magic, and White Auracite are all good examples of cards costed well above comparable spells in other sets
Don't forget you can win the game as well - Craterhoof Behemoth (5), Pathbreaker Ibex (3), End-Raze Forerunners (7), Earthshaker Giant (6)
Damn, and I just deconstructed my Rakdos Burakos deck, too
They do still pop up from time to time in silver border, but accommodations for players unable to perform the physical action required must be made
Much of the list is broken down into groups, as many cards are banned for very similar reasons