[Author Note: Just dumping what I already have here.]
Magic Crystal - Mana crystallized deep underground.
Magic Artifact - A weapon or device created with the use of magic crystals.
Magic Formation - A formation that simulates a spell when activated.
Power Level Constant(P) - 3.162278
Power Score Formula - P^n
Divine Essence - A pure type of mana considered to be the first ever mana of that type in existence.
Humans - A race of intelligent humanoids.
Demons - A savage race composed of dark skinned humanoids. As they grow stronger, they become closer and closer to the image of a human.
Angels - A divine race whose very purpose is to serve the Goddess.