Does Vader make you discard the command token or just flip it over?

Flip it if it's ready; discard it if it's flipped.

"Spend" means it works exactly like it does when you spend it for defense.

Thought so thank you for clarification

Does Vader make you discard the command token or just flip it over?

Also, it's not a command token, but a defense token … just to be clear.

Your right just typed wrong token.