The last of the Mohicans noun phrase
The last remaining member of a group, kind, or race
I am the last of the Mohicans. Everyone who came with me is already gone.
Poor that little boy. There's a lot on his plate right now. After all, he is the last of the Mohicans.
This phrase came from James Fenimore Cooper's 1826 novel The Last of the Mohicans.