Hades - Greco - Roman god of the Underworld and wealth (because all precious metals or jewels that are in the ground belong to him). He is one of the twelve Olympians. His symbol is the Helmet of Darkness which makes him invisible when worn.
Dryad - A dryad is a tree nymph, or female tree spirit, in Greek mythology. They were normally considered to be very shy creatures, except around the goddess Artemis, who was known to be a friend to most nymphs.
Epic Floor Design, although I'm not sure what the idea is. if laid with clear or glass tiles to see the design would be different, but to put black tiles over doesn't make any sense. I wonder if you get a magnifying glass to view the floor.
Athena The Goddess of Wisdom and War Born of the head of Zues, she is the goddess of wisdom. She represents the side of war that is ruled by strategy and thought. "Knowing yourself is the beginning of all wisdom.