The Wizard101 Mystic Fishing Bundle is super nice for all the fishermen and -women amongst us! It comes with energy gear and a gauntlet that has some unique fish for you to catch. Check out this fishing-specific bundle, with pets, gear, and fish!
The two main sources of Critical Block at top level are from Boots and Wands, so it is of paramount importance to get as much as possible from these items. If you're level 76, the crafted versions are the best available source.
Khrysalis part 2 came with school rings and amulets as drops in KR's final battles. Check them out! There are School Specific Rings, Amulets & Athames, dropped by Morganthe and in the challenging Galleries.