I'm coming back to a problem a had some time ago now where I wanted to have a trap where acid would rise up from the flood and start hurting the player, I could use a trigger box to hurt the player easy enough but couldn't get the trigger box to move. After playing with watertypes for something else I realised Causes Damage could be the answer but it just dosen't seem to do anything.

So has anyone had success with it or is it not used/broken?