Baldur's Gate : The Sword Coast Chronicles : NWN2 Persistent World

Does this require a Concentration check to use in combat or when damaged? Thanks.

This was years ago, but I think it was pretty much instant.

Instant activation, no concentration check required.

As with invisibility, melee enemies will still track you and run after you once it is used, possibly even making attacks during the round. They will do this until they end their round within melee range.

As this is only a 3 round effect, disengaging from melee first before activating usually gives better results, the same way you would with a HIPS character.

Works very well when with allies or while at range.

Thank you both. Seeing Concentration in class made me doubt a build.