Guys I gotta make a rap about the great plains indians any ideas

I have a rap for it goes,
The American Indians on that plain,
Lived there a thousand years without pain,
They had resources that helped these fellows,
Which was the great herds of Buffalo,
They lived in villages near the river,
Almost as if they never shivered,
They ate meat like it was a daily feast,
And used the skins to help them survive,
Otherwise they would have died,
The Lokota moved on west,
And became know as the Nomads.