Ya, as a Sch I dps when I can. Even just tossing down a non CS Shadow Flare helps kill groups just a bit faster. Or on bosses where I know the tank won't be taking much damage, CS up and toss on some dots and maybe a ruin or two before needing to heal (if ever). Like 2nd boss in Hullbreaker. I take CS off just before going into the bubble, heal everyone after the pop and go back to being a DD as long as everyone stays out of stuff, even then Selene takes care of most of it.