Quite decent. However, I would like to question the Choice Band on Goodra. When you have Assault Vest, a colourful movepool and a gigantic Special Defense stat with some investment, it feels wrong to use Choice Band.
I can understand you're making use of Sap Sipper though, and in this case your team looks very good. Be warned though, some games are uphill: Mono-Fighting, Mono-Ice, adversary Mono-Dragon with more luck on landing Draco Meteor / a Scarf Pokemon will win against you, almost all the time.
You may need to use Scarf on a Pokemon. Kyurem-Black looks like a good candidate for it.