More M11 official info:
http://www.wizards.com/magic/magazine/a
grss#69204
One thing that bothers me is their denial vis-a-vis Fireball. The first paragraph I agree completely with: the card is just very confusing.
The rules text makes you scratch your head and wince trying to comprehend the amount of mana you need to pay. You have to break out a notebook and sketch it down before one understands what the hell is going to happen. Then you show it to your opponent, take a deep breath and go through the calculations again, explaining it to him.
That's really not fun, not efficient, not anything.
Why don't they bury it already? They admit it's a problem, but they still don't want it out for some reason.
I'm close to deducing that they actually NEED a spell with the name Fireball, and they have no better wording for its effect. So they keep it in there, cause they can't make a different spell with the same name, and the world can simply not exist without a spell named Fireball.
Is that it?