Ochitekita Ryuuou to Horobiyuku Majo no Kuni - Vol. 1 Ch. 5

[MangaDex]

 

[LoneSentry789]

Let me guess; he's Oda Nobunaga, right?

 

[welcome2atlantis]

There are many weaknesses to this wooden golem thingie. Fire traps, fire arrows, pitfalls, split the troops and go up at the same time, kill the controller (she's way up there and is easy to target), etc. The human army commander must be a total idiot to fail the attack every time.