hello i have a question, in the tome of fate, page 60 , the Fire Bolt is one bolt , but does not say how many bolt throws the Fire Barrage, Fire Storm, Incinerate

Please read the Core Rulebook of Black Crusade at page 209 about Psychic Bolts...

To elaborate, FFG decided to clean up the notation/keywording for describing psychic powers. Thus damaging powers like those in the pyromancy tree (which is crap, but that's another story) have firing modes that are analogous to Single-Shot/Semi-Auto/Full-Auto. Though the page Athanatosz mentioned contains more detail on the subject.

If interested in piromancy keep in mind that it more suitable as a horde controll/mind flamer instead a high damage dealer...

If interested in piromancy keep in mind that it more suitable as a horde controll/mind flamer instead a high damage dealer...

It's even better at area denial. Very few people will run into a burning inferno. That said, it can get out of control and backfire fast. Fire is still a dangerous weapon to any side even in 40k.

thanks