Oh well, don't use the Pincers, lol
Wave one: The dogs are just stupid easy. Wail on them with light attacks/slide+follow-up/launchers, QTE, shouldn't take more then 30 seconds
Wave two: Perfect parry Swordmasters. Best two ways to do it: when they're doing that multi-strike upper attack(as in they swing from above and you gotta parry all 4-5 of them), let one hit you, then IMMEDIATELY parry the next hit and you're stun him for a QTE. Or, you can perfect parry the forward strike of his, then perfect parry dance, parry when his sword glows yellow).
Then it's just the dog, who again, is very easy, you can stinger-Blade Mode Cancel all day if you want, and the two hammer bros. You stun one with the purple Sai, then bait the other to attack, and take advantage of their loooooong recovery time. Focus your attacks on one, because once one is gone, you can just purple sai, mash light attack, rinse and repeat without any danger of being hit.
Then finally you got four dogs, which sounds difficult, until to you remember the same strategy applies because they're kinda stupid. They don't even attack you off-screen 99% of the time, they'll just stand around watching their buddy get worked.