Dungeon Shade's ability

However, it only loses the invisibility if it hits an enemy. This can lead to unwinnable battles if the Shade is too low a level to actually hit anything.

On a related note, how to hit invisible enemies? I hate having to mash defend for multiple round against this guy when he’s stunned or otherwise unable to act.

There are some abilities like Troll Arsonist’s that hit through invisible, also some spells (Affliction comes to mind).

Thanks, going to equip one just for this guy!

There is also a carver creature with an ability that lets you attack invisible creatures (iirc the ability is called peekaboo)

Also all spells that hit all enemies seems to work.