He 'wields' a great deal of influence over his students.
The man was 'wielding' a gun/knife.
Can he 'wield' a hammer?
(..) - Yes, my lord. Right. Now, don't think this means I approve of this nonsense with you and Alliser Thorne. That's a man's sword. It'll take a man to wield it. I'll apologize to Ser Alliser tonight. No, you won't. I sent him to King's Landing yesterday. The hand that your wolf tore off (..)2011 TvShow: Game of Thrones Title: Baelor Season: 1 Episode 9