Dartrix was Hau's starter Pokemon and his pride and joy. Dartrix hates the look of bedhead and it tried to clean up
Ash's Rowlet. It also really loves a challenge and it had been training so that Hau could take on the island challenge.
Hau's Decidueye the evolved form of
Hau's Dartrix. It evolved from Dartrix just in time for the Alola League.