Bushido: Rashka The Devastator

Description from the publisher:

A monster of huge proportions even by Oni standards. On the battlefield he rampages through enemy lines, neither man nor metal can halt his carnage as he scatters soldiers like ants under his colossal shadow, swinging his desecrated tori arch in wide arcs. Those not broken by his initial impact are drilled mercilessly into the dirt as easily as a carpenter hammering nails, even the strongest armour offering little protection against his unworldly strength.