This is essentially a reskinned ogre. I threw him in to give the Scrapwall Scrapper encounters a bit more teeth on the Medical Level. Took my players by surprise.
Large giant (ratman), chaotic evil
Armour Class 11 (hide armour)
Hit Points 59 (7d10+21)
Speed 40’ ft.
Str 19 (+4) Dex 8 (-1) Con 16 (+3)
Int 5 (-3) Wis 7 (-2) Cha 7 (-2)
Senses Darkvision 60 ft., passive Perception 8
Languages Common, Ratika
Challenge 2 (450 XP)
Flail. Melee Natural Attack: +6 to hit, reach 5 ft., one target.
Hit: 13 (2d8 + 4) bludgeoning damage.
The Rat Ogre combines the speed and ferocity of a Skaven with the sheer brawn of an Ogre. Somehow the desperate hunger of both races has been magnified as well – for the Rat Ogre is truly a ravenous creature, forever seeking to gorge its fill on fresh meat.