I put together a New Video discussing Proficiency Bonus in Pathfinder Second Edition, citing page numbers from the Core Rulebook for your reference and as a basis for the conversation. Proficiency gives you a bonus that’s added when determining the following modifiers and statistics: AC, Attack Rolls, Perception, Saving Throws, Skills, and the Effectiveness of Spells.
Please share your comments and rules savvy as everyone is reading the newly released Core Rulebook and gleaning out our understanding of the system! I come from an old school AD&D background so learning the new rules and trying to consolidate them into subjects for others is part of the fun.
Pathfinder Core Rulebook (Second Edition) © 2019, Paizo Inc.; Designers: Logan Bonner, Jason Bulmahn,Stephen Radney-MacFarland, and Mark Seifter.
The words Proficiency Bonus appears 82 times in the CRB.
What is a Proficiency Bonus?
“Proficiency is a simple way of assessing your character’s general level of training and aptitude for a given task. It is broken into five different ranks: untrained, trained, expert, master, and legendary. Each rank grants a different proficiency bonus. If you’re untrained at a statistic, your proficiency bonus is +0—you must rely solely on the raw potential of your ability modifier. If your proficiency rank for a statistic is trained, expert, master, and legendary, your bonus equals your character’s level plus another number based on the rank (2, 4, 6, and 8, respectively). Proficiency ranks are part of almost every statistic in the game” (10).
Proficiency Rank Proficiency Bonus (Level+Rank)
Trained Your level + 2
Expert Your level + 4
Master Your level + 6
Legendary Your level + 8
“Proficiency is a system that measures a character’s aptitude at a specific task or quality, and it has five ranks: untrained,trained, expert, master, and legendary. If you’re untrained, your proficiency bonus is +0. If you’re trained, expert, master, or legendary, your proficiency bonus equals your level plus 2, 4, 6, or 8, respectively” (13).
“If your proficiency rank for a statistic is trained, expert, master, and legendary, your bonus equals your character’s level plus another number based on the rank (2, 4, 6, and 8, respectively). If your character is untrained, your proficiency bonus is +0” (27).