this is Bright Sun That Gives Light (A.K.A Bright sun) he is lame in his foot and blind in one eye, to know why he is sad, go here: viewtopic.php?f=32&t=194302&start=0
he has the powers of fire and light but he has to stay home and send messages with the birds. Since he can't talk to them, he writes what he wants to say on a leaf(they invented a little can alphabet) and sends it with them
in the end, he proves useful, as enemies try to infiltrate their home