Knowing Blizz, they'd probably still manage to fuck it up.
"Requires Sword in main-hand..."
"When used in front of an enemy simply turns into "The rogues slightly pointy toothpick" and deals 50% less damage"
Or something ludicrous like...
Energy cost: 101 (121 for Assassination)
Energy cost is reduced by 1 if used on a target with a rolling Rupture, while you've got Slice and Dice running, upped a Recuperate within the past 10 seconds, auto attacked the current target a total of 40 times (resets at target swaps), parked your car within the standards of the government, made dinner for 20 in less than 20 minutes, and lastly, cracked the riddle of Cold Fusion.