General questions and discussions.

I don't know, they've already buffed it; introducing randomness, where mass magic affects some creatures but not others, is nonsense (it will be similar to the old resistance mechanic). Changing the spell power reduction to a percentage will have the same effect, just from a different angle, and spell power already affects both summoning and duration, as has been mentioned. Reducing magic to its base value is just utter nonsense. Kostya, you're just creating pointless chatter out of thin air. The change is more than adequate, and you can't please everyone. (Stop whining for no reason).
P.S. I'm all for removing overly overpowered things and buffing weak skills, as well as carefully reducing the huge amount of randomness that existed with resistance. These are very good changes, and everyone who says otherwise is just someone who likes to flip a coin.