Premium Jelly

Premium Jelly is a rare drop from Slimes.

Obtaining
Any type of slime except Neutral Slime rarely drop Premium Jelly when defeated. Premium Jelly can be found inside Magic Chests in Dungeon in Dragon. Arcane Chest and Warrior Wealth sometimes containing Premium Jelly in ranges of 1-3.

Usage
Premium Jelly is used to evolve Weapons and Pickaxes (except from 3 star - 4 star gear that require Mythril instead). It can be also used for collection, or sold for a high price, since it isn't stackable and gives you 30 coins per stack.