Ah, creativity in its best form! I like it, I like it!
And yes, Ninjutsu is actually an extremely broad term. It contains the five elements as well, however, as you touched on, we are focusing on the tools and chakra and creative/manipulation of them. Bread and butter indeed. ^_^
So, in our next few lessons, we will be learning about several basic ninja tools. Because there are typically no restrictions for ninja tools, use them as creatively and as much as possible.
Let us start with the kunai. What do you know of this and how to utilize it?