Last but not least, Luna! What would Harry have done after Sirius died without her comfort? Se also gave him good incite while they were with the thretals. Also She helped Harry trough Dobby's death a-lot. Also when Harry, Ron and Hermione were running off to find Voldemort and ran to dementors they cold not fight them off. Luna, Ginny, and Neville did patronesses to save them.