Reinhardt is actually quite good at Blarblade, believe it or not. He doesn't need to double stuff to get kills because of his higher Atk, and he can be dumb with Blarblade + Close Counter + Vantage. However, unlike Ursula and Olwen, he doesn't function nearly as well with just Hone Cav, but he can match or even outperform them with the full set of +6.