You still have to attempt the check to defeat Ripnugget. They are a single encounter.
If there’s a “then” between them, you’ll need to succeed at both checks sequentially; you must attempt both checks, even if you fail the first, because failure often has consequences.
ok thanks
You are welcome. Note that because you failed at the first check, the card will be undefeated, even if you succeed at the second check. But you will take additional damage if you fail at the second check.