@JeremyECrawford #DnD for the second part of the feat, it says add double the proficiency bonus. How does that stack with expertise?
— Oisin Debard (@OisinDebard) April 17, 2017
You never add or multiply your proficiency more than once when you apply it to a roll. For more, see "Proficiency Bonus" (PH, 173–4). #DnD https://t.co/unwjJH4dDX
— Jeremy Crawford (@JeremyECrawford) April 17, 2017
@Jklutts610So for the most part, if your a rogue then the feats are useless If your rogue has 18 skill proficiencies, the rogue has transcended the rules and may ascend to Elysium for an everlasting rest.
— Jeremy Crawford (@JeremyECrawford) April 17, 2017
@fyndhalThis doesn’t answer. Expertise and Feat double Proficiency. The final Prof. is only added once, but do the doublings stack? The rule that I referenced answers your question directly.
— Jeremy Crawford (@JeremyECrawford) April 17, 2017