Isabelle vs King K. Rool

Grab after 30 dgrab follow ups are almost guaranteed up to and past 50 or so probably higher (correct me if im wrong) if you are doing it earlier there's a chance he can interrupt

Pocket cannon and crown whenever possible (holds crown..cannon respawn)

He can stage spike you so be weary of second ledge grab
Mix in fishing rod recovery
If you can call a bad option dair and your on your way to some free damage

Rool back air will spike you, you can take to the opposite edge if you need a breather

Llyod trap about middle or back edge of platform covers roll... oos options and edge options You'll deal with more are nair and crown... mix in fishing rod

Dthrow to uptilt
Fishing rod (down) to fair/up air cross up
Uptilt combos into itself at lower percent
Fair to ftilt on missed tech at lower percents
Dair to up air at higher percent
Dair to uptilt/fair at lower

I believe the matchup to be in Isabelle's favor... take the crown... Condition them to sheild then back throw them... Give them the pole and get in there! fairs n ftilts watch out for up smash(platform pokes you) n dash attack along with his other primary kill options