Form of poetry Oftentimes about nature With Japanese roots

I'm not something you see in the sky Nor the rodents that make many cry Instead I describe certain powerful guys Or something that would leave nobody to cry What am I?

I’m long, I’m royal, and I’m held with pride, A firm little symbol kings keep by their side. I’m stroked, I’m polished, I’m raised when they’re bold. What am I?

I am dark and bitter, but can be milky sweet. I was a luxury for Kings, but now for all to treat. What am I?

People will try to correct you, In fact they all are wrong, Read of my deeds, And you shall see, I WAS the monster, all along