Last Wednesday marked the official debut of Heart, a comic-book miniseries by writer Blair Butler and artist Kevin Mellon that follows an aimless office drone’s quest to discover his life’s purpose through MMA. I read the first issue last weekend and thought it was a great story, and another positive representation of the sport in entertainment culture. (See also: Warrior, Tiki Ghosn’s appearance on Blind Date.) So pick it up on your next trip to the comic shop, okay? The four-issue series will…