I wouldn't dream of insulting the greatest dark horse Pokemon of all time.
I do question your Gallade set, as it looks like you're trying to run a bulky swords dance set on a Pokemon with terrible defense. That, and if a boosted fire punch can't save dragonite from skarmory, then it won't save Gallade either.
Either way, without forcing you to change your members of your team too much, you might want to go with a bulky go lurk rather than an adamant one (my secret second dark horse has been revealed!). Bulky golurk is the perfect switch in to a terrakion of any kind. Golurk doesn't do much to scizor, but by running a bold tentacruel in place of a hardy one, you'll be able to defend yourself against him for a bit better. You might want to mess with his ev spread, as his hp isn't good enough to avoid investing Evs in.