In most cases Knowledge checks don't take an action in Pathfinder. 78 may rule differently though, some people do. Highlighted green sentence below
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Knowledge (Int; Trained Only)
Monster Lore
You can use this skill to identify monsters and their special powers or vulnerabilities.
Check: In general, the DC of such a check equals 10 + the monster’s CR. For common monsters, such as goblins, the DC of this check equals 5 + the monster’s CR. For particularly rare monsters, such as the tarrasque, the DC of this check equals 15 + the monster’s CR or more. A successful check allows you to remember a bit of useful information about that monster. For every 5 points by which your check result exceeds the DC, you recall another piece of useful information.
Action: Usually none. In most cases, a Knowledge check doesn’t take an action (but see "Untrained," below).
Retry? No. The check represents what you know, and thinking about a topic a second time doesn’t let you know something that you never learned in the first place.
Modifiers
Training You cannot make an untrained Knowledge check with a DC higher than 10.
Equipment (Library) If you have access to an extensive library that covers a specific skill, this limit is removed. The time to make checks using a library, however, increases to 1d4 hours. Particularly complete libraries might even grant a bonus on Knowledge checks in the fields that they cover.
Last edited April 5, 2019 7:17 pm