"No, it's different," Enola explained. "Because Harry has designed a spell to project Riddle's magic back at him ... using their connection as a conduit, which will close once the Dark magic is expelled from Harry. But he can only do it if he has direct access to Riddle himself. Then, once Harry has purged Riddle's magic from himself, he can kill him however he chooses. Nothing says that he has to do it with a spell ... and I rather think that his Animagus form will come into play somewhere. Harry always becomes a lion to play with his juiciest food. But there isn't much point in doing that until the lost Horcrux is found and destroyed."