The fusion of dr strange and Wanda is strange Witch,

Strange Witch uses powerful and scary magic like Wanda but combined with dr strange's powerful,skillful and experienced magic,Strange Witch can combine both Wanda's scary magic and Strange' powerful spells to make a very dangerous and deadly combination

Strange Witch uses both his magic to be both a hero and a villain,Depending from his mood he'll either be a hero or a villain,Strange Witch can use very powerful spells and scary magic spells