This beautifully painted Questoris Knight Magaera was on display at Warhammer World in July 2018.
Magaera type Knights are most often used as shock assault units, breaching the most heavily defended enemy positions, while shrugging off heavy weapons fire and self-repairing even devastating weapon strikes in a few minutes. To aid in this role it is armed with a complex lightning cannon, using focussed electro-magnetic beams to vaporise infantry and blast apart armour.
One mean looking machine.