The Ranger companion says to add your proficiency bonus to the animals attack roll. Does this replace the animals proficiency bonus or add to it?
Ie does a 5th level ranger flying snake get +9 bonus or +7? The snakes natural +6 is it's +4 dex bonus and it's +2 proficiency bonus so does the ranger replace the +2 with her +3 bonus or add her +3 to the +6?
The players hand book says not to add your proficiency more than once which might suggest the +7 but technically the snakes proficiency and your proficiency are not the same bonus which would suggest the +9.