Hariet is a bombs expert and is responsible for the pyrotechnics. Hariet is considered to be the least predictable of the Broodals. While normally wearing a small doll hat, she brings an iron helmet in battle, in which she stores her homemade bombs.
If you don't hit her with her thrown bombs in the first two times, she'll use her hair to smash a bomb on you. However, that part is slightly easy to hit her.