okay you have everything you want unlocked / extended... what do you do with left overs? can you not buy exp anymore?

Use them to skip tasks that are annoying once your block list is full.

This. I really saves some time and energy.

this is the best thing, especially later on when you are pushing 99, you can skip to bursting tasks and rake in the exp

If you have all good unlocks/extends and every slayer helm color unlocked just use them to skip tasks to get boss tasks you wanna do for collection log. Pretty much all you can do.

Slayer helm placeholders

imo there should be a " favourite list "

just increases the odds