When using wombo combo, you use both your grenade and your melee charge just for 1 kill, maybe 2 kills. And then you have to wait 30-70 seconds, (depending on discipline and strength) just to do it again. Whereas you can use Shoulder Charge as long as you are able to sprint. With a couple of seconds of delay between each charge. There's nothing wrong with Shoulder Charge or wombo combo. But if Shoulder Charge was going to be nerfed, it shouldn't be wombo combo that had to be nerfed, but Shadestep. It makes a lot more sense to nerf Shadestep which is a subclass ability, just like Shoulder Charge.