Spellduellist (WotBS)

You have studied the art of spell duelling, perhaps under the famed evoker Gabal in the small school he maintains in Gate Pass, or at the Lyceum in Seaquen. Thanks to extensive practice with duelling other spellcasters, you gain the following benefits:

• You know how to convince an onlooker that you’re casting a spell when you actually are not. You can pretend to cast a spell as a bonus action. The spell must be on your spell list, and any onlooker who would use a reaction to you casting a spell — such as by attempting to use counterspell, taking an attack of opportunity, or performing a readied action — must make a Wisdom (Insight) check contested by your Charisma (Deception) check to realize the deception, or their reaction is used upon a failure as if you had actually cast the
• You have advantage on Wisdom (Insight) checks to determine if another spellduellist is pretending to cast a spell and Intelligence (Arcana) checks to identify a spell being cast.