Магия "Might & Magic Heroes VI"

Sadness :(. I was just starting to enjoy Anastasia's magic, and suddenly the cost of all spells increased by 30% :(. A week of frog-related events, and artifacts that increase the cost - too... Has anyone noticed this? Casting an explosion for 60 units is at least not profitable.
And meditation didn't impress me. There was little mana, so it consumed more mana than it restored. And it was a pity to lose a turn.