LEGO Ben 10 Alien Force Swampfire (8410)
In Ben 10 Alien Force, transforming into the immensely strong, nearly impervious Swampfire gives Ben the ability to shoot fire from his hands and regenerate severed limbs.  Buildable by kids aged 5+. Based on popular Ben 10 Alien Force story where 10-year old Ben Tennyson discovers a mysterious device which gives him the power to transform into different alien heroes.