Boon of the Dragons' Tongue

The character has absorbed the essence of dragons, gaining the ability to fluently speak and comprehend the draconic language. 

Once per long rest, the character can channel the resonating power of the dragon's essence to augment their persuasion, intimidation, or deception rolls during conversations with dragons. This subtle manipulation draws upon the mystical link forged by the Boon of the Dragons' Tongue, offering a single reroll. The latter roll must be used.