I have no idea how this came to mind...or why I thought it was a good idea...but here it is!
You have just become old enough to be able to command a deck leader. Who are you, what element(s) do you have, and what is your deck leader?
Name:
Level: 1
Gender: (Male or Female)
Deck Leader: (See Link in Mechanics)
Element(s): (Fire/Ice/Air/Earth/Energy (Electricity)/Water/Light/Shadow/Poison/Emotion (Fear, Happiness, etc.)) (Note:You may choose up to 2. Elements are inherited from your parents. Selecting only one makes you stronger than if you select two.)
Appearance: (Horn shape, wing and scale colors, etc)
Backstory:
Fire is strong to Earth and Ice, and weak to Water and Air.
Water is strong to Ice and Fire, and weak to Air and Energy.
Earth is strong to Air and Energy, and weak to Fire and Ice.
Air is strong to Fire and Water, and weak to Energy and Earth.
Energy is strong to Air and Water, and weak to Earth and Ice.
Ice is strong to Energy and Earth, and weak to Fire and Water.
Light is strong to Shadow (on offense) and Poison, and weak to Shadow (on defense) and Emotion
Shadow is strong to Light (on offense) and Emotion, and weak to Light (on defense) and Poison
Poison is strong to Shadow, and weak to Light.
Emotion is strong to Light, and weak to Shadow.
The setting would be described as a mixture of post-Legend of Spyro and Europe nearing the Crusades with a splash of Yugioh Duelists of the Roses.
A mixture of using a d20 and whatever makes a good plot, except for the Duelists of the Roses sections, which will use the mechanics from that game. (http://yugioh.wikia.com/wiki/Yu-Gi-Oh!_The_Duelists_of_the_Roses_Gameplay)