does anyone know how to modify spells

could anyone please help me and tell me how to modify spells. my bro wants to modify a map for use in single player. any help would be appreciated. thx

You can modify , but it will not work with maps even if you add the SLK to the map. If you really want to modify spells, you gotta use MPQs , not maps.

you need to look in the mpq files and look for stuff that has the ending .slk it has much of the info on that.