• EP refers to Estimated Power, which is used to determine the visual difficulty level. It is by no means accurate, and you should only try raise it for dungeon farming / dungeon skipping.

Key to building EP: 

• Early-Mid Game: Dodge items

• Late Game: MR (Magical Resistance) items

EP formula:

     HP * ATK|MD * (1+CR*CD)

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200 * 0.99895^(DEF|MR) * (1-DODGE)