Seducers have silver tongues which can palm off bad wares. The Greek word there is taken from those who are skilled at throwing dice for the best advantage. So seducers are impostors. They can throw dice. They can so counterfeit and spin the truth that they can deceive others.
Seducers deceive by wisdom of words.
They have fine, elegant phrases and flattering language. By these they work on the weaker sort. Another trick is pretending extraordinary piety so that people may admire them and suck in their doctrine. They seem to be men of zeal and sanctity, and to be divinely inspired, and they pretend to new revelations. A third cheat of seducers is laboring to vilify and nullify sound, orthodox teachers.