Okay, so technically Sarah Kerrigan doesn't use blades in game. In fact, she rarely uses them at all. But we do know two things about Kerrigan: when Narud takes on her form to fight her, he uses a Psi-Blade, and when she is the Queen of Blades she uses her exceedingly sharp claws to cut through the tough armor of enemy tanks. While these don't necessarily count as "swords" or "blades" per se, Kerrigan gets an honorable mention on the grounds that if Wolverine can get on a list with sword masters, then so can she!
Besides, what kind of list about the "Queens of Blades" would this be if the Queen of Blades herself wasn't on it? Huh?