There is discussion in our community on this card.
Torani Kulda - can you discard 0 tokens to avoid damage?
Here is the card text: After you perform an attack, each enemy ship inside your bullseye firing arc at Range 1-3 must choose to suffer 1 damage or remove all of its focus and evade tokens.
One group says you can discard 0 tokens if you have no tokens so you take no damage. I am under the impression this works the same as Pulsed Ray shield where you have to have the tokens in order to use that part of the text. If you have no tokens then you automatically take the damage.
Edited by Galandrill