WP - "Etherlords is a psuedo-card battling RPG for the iOS platform, probably soon to hit Android as well considering how insanely popular it has become. In this game your creatures are grouped by rarity. Common creatures are the greatest in number, but obviously they are the least powerful. Uncommon are more powerful and more rare but still common. Rare are fairly hard to find and are quite strong. Superior and Legendary creatures are few and VERY far between, and are far far superior to whatever else is out there."