Great Hero Boost Potion

Alchemy Masters and Renowned Masters can make this potion, which increases your Damage by 5% for 40 minutes.

Caution
Normally, only 1 potion can be used at a time, but Alchemists can use 2 if they are of different types.
However, even Alchemists cannot use 2 of the same potions at once, and Boss Rush Boost Potions, Penetrating Boost Potions, and Great Blessing Potions cannot be used together.