Super Predator / Super Prey Cards

Pupils are given a card each (half the class predators and half the class prey) and asked to design their own made-up animal with as many adaptations as possible. Once complete, the pupils are then able to walk around the class and have a 'pokemon-style&' battle with the opposite type animal; comparing features to decide who would win... Would the predator manage to kill the prey or would the prey get away?!