Here's an idea.
Young fifteen year old Seto Kanra was a simple high school boy who was nothing more then an otaku without a proper look on life. One day his teacher noticed that he was good at drawing and asked if he was going to make a carrier out of it. Seto says he hasn't thought about that, so the teacher suggest he takes part in an art contest to show his skills, and gives him a flyer. That Saturday, Seto arrives at the location only to find it's in a dome that's big enough to be a football field. Seto goes in and meets one of his high school girl friends and secret crush, Naruki Hasegawa, or "Naru" for short. As the announcements begin, it turns out the art contest is actually a tornement of artist where their art comes to life and becomes weapons, monsters, or actual creatures to attack the opponent's drawing called "Deadly Art ". Seto loses the first time around, but as the series goes on, he starts to get better and better as he defeats his rival, Hanza Moritaki. However there's a deeper plot in the art tournament as a sinister foe plans to use the art to take over the world.
I call it, "Deadly Art!"