You'll need the Rogue Landmine Handle (the angled one), but it's absolutely worth the purchase if you're trying to smash the yoke.
This exercise is sort of a pairing of mini-rows and shrugs. They really smash the middle and upper traps while also bringing in the rhomboids. Shrug and row together, lifting the shoulders up and then pulling the elbows back as well. Hold the top of each rep for at least 3 seconds before lowering.
Do 4 sets of 10-12 reps and your traps and upper back will be smoked.
So you spend maybe 5 or 6 hours a week in the gym. How much of that time is spent snapping towels or playing the soap dish game in the locker room? If you plan just a little and cut out the wasted time, you might actually build a decent physique.