The Deathroller is coming to Bloodbowl later this month.
via Warhammer Community
https://www.warhammer-community.com/2017/03/20/hes-on-a-roll/
This model will be on his way later this month to pre-order. Rules for this ludicrous contraption, and the rest of the Dwarf team, can be found in Death Zone: Season One.
