QUOTE(tribalspirit @ Dec 31 2010, 11:36)

but with absorb you will have a mana income...
or not!?
I can't decipher that question.
QUOTE
thinking about it, with bewilder monsters do less magical damage so you get less mana from absorb
or not?
No. It's a random number around the cost. Sometimes you'll lose a few MP, sometimes you'll gain a few MP, it has nothing to do with the monster's magic attack.