I am always hearing from people that the smoke grenade has too many abilities in one and should be nerfed. I say look at it logically, removing any of these traits would make it not worth the effort and definitely not worth giving up the invisibility perk. "If I don't blind you, you'll shoot me dead. If I don't slow you, you'll just run away. If I don't poison you, I might not do enough damage before the effects wear off. If I don't suppress you, you'll just super me.