Dragon Shield Playmat Case and Coin Gold Gygex Cheap Sale Purchase

Each Limited Edition playmat features: 

Black rubber non-skid back with stitched and rounded edges 

Stable triangular carrying case 

Limited Edition collectible coin. Measures 610x350x2mm . Coins come in Gold (rare), Silver (uncommon) and Bronze (common) and are perfect for determining order of play. Combine your coin with the notches on your playmat case to easily keep track of your life total. Each coin bears a secret that will reveal more about the world of Arcania

Can you figure out the hidden meaning?