Also begs the question what they are crossclassing...

In order of importance for drg: Internal Release, Mercy Stroke, Second Wind, Mantra, Bloodbath

If you're not using Mercy Stroke you're either using foresight, featherfoot, skull sunder, fracture, haymaker....all of which are just bad. Foresight arguably not bad but drg is highest melee defense anyway, it's not gonna make or break anything that's not breaking any other dps.