Our hearts beat with a combination of blood, Big Macs and Dr. Pepper. StarCraft 2's heart beats with millions of ruthless, juicy aliens, and as the above BlizzCon teaser shows, Sarah Kerrigan's heart doesn't beat at all. We're not saying she's heartless, but to be a strong female lead these days, not giving a crap about anything except revenge is sometimes necessary. Being a cyborg and making that distinction truly literal is just a bonus for game journos everywhere.
A teaser for the Blizzard DOTA mod for StarCraft 2 channels a markedly different emotion than vengeance -- watch the video and decide for yourself what emotion that may be, but for now we're going to call it "Valvey scorn."