She's a cold-ass killing machine, and she has been since at least Rucka's run, but I haven't seen any other side to her since then. As killing machines go, Deadpool is amusingly psychotic, and Wolverine struggles with his darker nature - hell, even Clint Eastwood's Man With No Name was a crafty, clever son of a bitch with a dry sense of humor - but with Elektra, there's nothing else THERE. I actually liked the Rucka plotline, in which a victim of Elektra's "collateral damage" got the worst revenge possible on her, by using his connections to ensure that no one would hire her for any more assassination jobs, nor even get into any fights with her, out of the theory that the only thing she lives for is to kill people, because that plot acknowledged how one-note Elektra has become.