| Tailiat |
I've opened most combats with wooden palisade as the ability to block off parts of the battlefield (especially corridors and doors) has been amazing. Every action wasted trying to break through is an action not used against your team. Maybe the monsters have been unlucky, but it often takes several actions for enemies to break through.
I've even managed to get some use out of the ladders/platforms as you can use it as a kind of battle tower. My GM counts it as being behind standard cover giving us a decent edge against ranged enemies. If they try to destroy the bit you are standing on the grab a ledge action (or cat fall) can mitigate the fall risk.
The utility is pretty unique as well because unlike a caster with spell slots I can use palisade in every single combat without ever worrying about the opportunity cost or running out of spells.
Dash of herbs is undoubtably good too, but I don't find it nearly as fun as wooden palisade. One fun combo I found with dash is creating emergency ration snacks treated with dash. This creates everyone a mini-combat potion that lasts an hour. I had originally made meals pureed into glass bottles labelled herb tonic, but my party found this objectionable for some reason.