Description of the skill say : moves at half AP cost (every second move costs 0 AP) and can move across tiles as if they had Flight.
So, i guess, you shoud be able to pass barricades.
Shadow of the Bat (14 min)
Barricades block your passage; you cannot move in that direction!
Shadow of the bat can't pass barricade
Re: Shadow of the bat can't pass barricade
Debatable but intentional.
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