I've decided to develop the character as a shamanic sorcerer - found it the most suitable kind of magic character for one who communicates with the spirits of fallen heroes
I also did some research on the ways shamans do their rituals, stuff they use for their magic - found staffs of interesting shape, different attributes (bells, bones, stones, ribbons, etc..). It will help me decide how Whisper's powers work and how she uses them.
Still thinking about her outfit - really enjoy working on her clothes
little faces - seals, one for each hero. I will write more about the idea later.