Anyone explain to me how Torani works with Snap Shot?

By Cubanboy, in X-Wing

So if I give Torani Snap Shot, the opponent moves into range I get to shoot them, if they have no tokens can they say I discard them (even if they don't Exist), or is it another damage. Is Torani better at snap then Pure Saboc?

Edited by Cubanboy

They can choose to discard 0 tokens.