The Nerd Beast can be evolved into the Nerd Hippo at LV37, and then carry the King's Certificate to communicate as the Hippo King.
Pearl Shell carries an Evolutionary Tooth Communication as No.367 Megamouth Eel (blue) and an Evolutionary Scale Communication as No.368 Spiked Eel (red).
The Water Bomb should be the Poison Bomb, the move that the Poison Sting Jellyfish does.
Adding beauty can only be done by eating Monster Boxes, and you have to fill them up before you can't eat them, which requires a high level Monster Box.