@Book
It is NEVER too late to join this RP!
Also Katrix isn't too far from the truth. Light magic is a bit more neutral and "pure" than the other magics, and is the polar opposite of Dark Magic (Shadow Magic is a bit more of a offensive supportive dark magic that one can use their own shadows, or the shadows of objects to manifest shadowy spikes and such.) Dark Magic is a bit more evil and purely offensive. Yes it does have a few defensive type of spells like simple weak barriers that can guard against Light magic and a few others.
Light Magic usually consists of healing spells, barrier spells, and a few offensive capabilities (like insanely simple attacks of light.)
Shadow Magic like I said allows one to control their own shadows and do many things if they know how too. It's one of the less draining magics as it just takes the knowledge and patience to learn how to pull off each spell. One can use Shadow Magic as a means of transport by sinking into their shadow, and then emerging out of a different shadow (takes time to do though.) While it can also be used offensively like extending ones own shadow, then creating a spike made of shadows, or even trapping ones shadow. The only problem with Shadow magic is that it isn't all too fast. It takes time to cast the spells, a bit more so than the other magic types. Yet can be sped up if one charges more magic into the spells.
Katrix was pretty dead on with Wind Magic. Those were just examples though, if one is creative then one can manipulate the wind in order to do various wind based spells.
All magic types are capable of many different things, you would be surprised at what some of the magic types can do.

Something like this, hair reaches down til waist level, about 1.7m tall.