Yup, the title isn't a spelling mistake, the Wordscreamer will be a mobile Burning Legion torture device, designed to make even the holiest of Paladins scream the answers the foul Cultists desire.
The main body of the machine will consist of a fairly standard torture rack raised up from ground on slow moving legs, with an orbital control panel and torture arms. There'll be lots of spikey things too... probably too many.
I'm going to avoid adding a character to this one, as I want the machine to be the main focus, but I'm thinking of adding a couple of small demons that would help out the operator - possibly Beholders (Behelpers? )
My ramblings probably don't make much sense, so I better go do some sketching!