Sea Knife

 is a dagger.

Obtaining

 * Crafted by a Dagger Smith (Lv. 100) from
 * 32 Kerub Hairs
 * 12 Mastogob Clavicle
 * 6 Crocabulia Skin
 * 4 Royal Tofu Feather
 * 3 Gleaming Pebble
 * 3 Magnesite
 * 1 Gorgoyle Handle
 * 1 Mumussel and Fries