Southern Magician

Type: General
Source: Races of Faerûn

Your magical studies in Mulan lands have taught you spellcasting techniques unknown in the north that blur the line between arcane and divine magic.
Prerequisite: Mulan human, ability to casts 2nd-level spells
Benefit: Once per day per two spellcaster levels, you can case a divine spell as an arcane spell, or vice versa. This enables you to bypass arcane spell failure due to armor, or gain additional benefit from spell that functions differently for a divine caster instead of an arcane caster, such as true seeing or magic weapon.
Spells changed with this feat are often confusing to whose who haven't studied Mulan magic. Spellcasters who don't have this feat suffer a -4 penalty on attempts to counterspell or dispel this spell, and they must succeed at a caster level check (DC 11 + spell level) to detect the spell with detect magic.
The actual source of the spell's power doesn't change, nor does its means of preparation. You are merely weaving the strands of magic together in an unconventional way that makes the spell behave somewhat differently.