Platform: Nintendo DS/DS lite/ DSi

Genre: strategy/RPG? not entirely sure what to classify it as.

Estimated year of release: 2005-2010

Graphics/art style: I think hand drawn, sort of a comic book style for the character art, for gameplay though very basic colors, shapes and symbols.

Notable characters: The only playable characters who I can remember were named "Baron Samedi" and "Djinn," each character had their own story, but that's all I can remember

Notable gameplay mechanics: 1v1 battles, you would draw runes on the touchpad to send attacks at your opponent. The attacks were represented by a coloured circle with the drawn rune inside it. Green for basic, red for some damage would go through a shield, blue for special effects (I think). The size of the circle represented how much damage it would do if unblocked. The more accurately a rune was drawn, the more damage it would do, and if drawn perfectly the rune was unblockable.

Other details: I believe that for the majority of characters, the game was in a school like setting, and the aim of the game was to beat all the opponents and claim the "wish" rune.

If it helps, I could sketch some of the runes that I remember.