Agree with above. Ninetails-Alola is only ever used for Aurora Veil, which is what you have here. However, Veil teams are a form of Hyper-Offence, a team archetype that doesn't really care for defensive synergy and instead focuses purely on destroying the opponent before they can beat you. Veil in particular relies on setup sweepers such as Zygarde, Magearna and Mawile-Mega. As such, your Excadrill, Volcarona and Ninetails fit this, and to an extent your Weavile as well. However, your defensive core fits more on a balance/bulky offensive team, and serves only to decrease offensive momentum/waste Veil turns whilst sponging hits. You'd have to decide whether you want this team to be hyper-offence or balance/bulky offence before I can rate this, as right now it's a confusion of styles.
