Walkthrough: After arriving with Hau on Ula'ula Island, he will ask to battle you. His team has continued to grow in strength and numbers, now having five Pokemon in his Party, three of which will be fully evolved. His Starter Pokemon will also be holding a Z-Crystal. After defeating him, he will give you Lycanium Z.
Hau (Rowlet Starter) - Level 30 Brionne, Level 28 Flareon, Level 28 Noibat, Level 28 Tauros, Level 29 Raichu
Hau (Litten Starter) - Level 30 Dartrix, Level 28 Vaporeon, Level 28 Noibat, Level 28 Tauros, Level 29 Raichu
Hau (Popplio Starter) - Level 30 Torracat, Level 28 Leafeon, Level 28 Noibat, Level 28 Tauros, Level 29 Raichu