He has low mana, inspite of a magician class. Wizard has -1mana for using any glyphs, Sorcerer has +5mana.
I'm not a big fan of B2P, so I usually convert immediately it. But, when I play Bloodmage, I always check first who is the boss in the dungeon before I convert it. Because, If the boss is slime, wraith or high physical resist boss, the boss fight can be a problem without B2P.
In this point, I have insisted that Vampire should be changed, because he has a huge weakness against Undead. He don't have a innate compensation like Bloodmage. Play Vicious halls of steel with vampire, you will know what I mean.
In short, Bloodmage and Vampire both have ridiculous powers, and they also have own weaknesses.
However, Bloodmage has a innate compensation(B2P) unlike Vampire.
Edit: AND, he is absolutely not inferior than Wizard and Sorcecer, I call him "Bloodmonster."
