X Marks the Spot

Whoa, what can X be for?
An extraordinary number of things, in fact
From xylophone to X-mas,
To existing extinction to be exact
I exemplify the fox, quick and sly
My grand exit was too brief,
Too quick for the extra excited eye
The X-Men thought to recruit me
With my extra-ordinary powers
But then along came Xavier, with his axe to sexy flowers
I ask you, man of ten ox
Where do you think I’ll find the promise land?
He said, “marks the spot”
Just play your saxophone in the sand

April A to Z Challenge