Sorcerer's Guide to Kits
short: Sorcerers are practitioners of magic who were born with
the innate ability to cast spells. It is thought that the blood of some
powerful creature flows through their veins; perhaps they are the spawn
of the gods themselves, or even dragons walking in humanoid form. Regardless,
the sorcerer's magic is intuitive rather than logical. They know fewer
spells than wizards, and acquire spells more slowly, but they can cast
spells more often and have no need to select and prepare spells ahead
of time. Sorcerers cannot specialize in magic the way wizards do.
All Sorcerers are capable of summoning a familiar as a companion, just like other wizards. These familiars can range from imps to pseudo-dragons. Some of these familiars compliment the abilities of their masters by increasing an ability score or improving a saving throw.
Note: A sorcerer does not learn spells from scrolls. He chooses new spells with each level. Sorcerers in BG2 use the mage avatar.