Bossk Pilot Ability

By delenmast, in X-Wing Rules Questions

This may already have been discussed or it may be a stupid question but here goes...

Can Bossk change multiple Crits into Hits or just one per attack?

Thanks for reading.

"When you perform an attack that hits, before dealing damage, you may cancel 1 of your kaboom results to add 2 boom results."

One only.

There's an important rule in X-wing that says you can only use an ability or effect once per opportunity, unless the card specifies otherwise. That rule is the reason Bossk's pilot ability only works once per attack.

Thanks for the quick replies. I figured that was the case but just wanted to make sure.