General strategy :
1) Lock-On : touch the frame which encircle the target player will lock-on him. (The color of aiming halo is different from each player you locked-on.)
2) Select : touch the magic book selection on lower right in screen, the available magic books will show up on center.
Choose one of them.
3) Draw : when a magic book has been chosen, a magic symbol will show up! Follow the sparkle and complete the drawing.
4) Attack : when you're done, check the remains of magic on the bottom of the screen. Press the shooting trigger beneath the controller and shoot.