Here is another new 9th Level Ability
Starting at 9th level, you have advantage on saving throws against poison and have resistance to poison damage. Additionally, you can use one of your poultices to cure one poison effect on the creature you are applying it to, in addition to restoring hit points.
Pretty good but only against one type of Damage.
Seems fair.
Then we have Panache,
Panache
At 9th level, your charm becomes as sharp and dangerous as your blade.
As an action, you can make a Charisma (Persuasion) check contested by a creature’s Wisdom (Insight) check.
The creature must be able to hear you, and the two of you must share a language.
If you succeed on the check and the creature is hostile, it must target you with any attacks it makes and cannot willingly move farther away from you.
This effect lasts for 1 minute or until you move more than 60 feet away from the target.
If you succeed on the check and the creature is not hostile, it is charmed by you for 1 minute.
While charmed, it regards you as a friendly acquaintance.
Both have 2 Effects.
Panache just seems way more bang.
Example:
Hallway single door.
Fighter Blocks entrance, either side of him 5 feet back two PCs.
Then at the end Swashbuckler, Panache Target in door.
Target has to push through 3 PCs to attack, otherwise just stands and gets hit, as target can not move away.
Gets worse and looks like a MMO Kite with Swashbuckler running a wide circle while the rest of the party uses,
ranged attacks and even melee when the Target is close enough.
Or Running the Target by PCs so they get OA on it.
Sure it can stop running but still not attack.
Really odd ability.
Placing it on Standby until I get a better hand on it, for my game.