Crabs.

Crabs.
Crabs are located in Port Town and Desert Camp. They are a decently strong Mob in Port Town. Crabs do not drop anything at all. You get 200 EXP and 15 Gold every time you kill it. They can knock you out in their 1st hit or so. TIP FOR STARTER: Do the Crab Chef's Quest to get some good EXP and Gold.