Good question

Yes.

Deadpool pls, you have a sword on your back

He is armed and dangerous

Question: Even though Deadpool's invincible, does he still feel pain?

well he still has one arm, and is armed with the other arm. its a double negative, therefore he is disarmed.
or possibly double-armed.
idk how maths works

Armed and armed

.

Why not both?
*mexican music plays*

Uh. It's obvious that he's giving himself a hand.