Think this isn't the right thread, but showdown - elements dual tournament could be awesome:
1.you are given an element

- fairy and psychic

- ghost and poison

- fight

- ground and rock

- bug and plant

- fire

- water and ice

- normal and steel

- fly (and bird-missingno)

- electric

- sinister

- dragon (and ???)
2.Three rulesets could be applied:
light - every pokemon in your team must know a movement of that element
medium - every pokemon must be at least one of the types
crazy - your team must be able to use smoothly a characteristic of the element(sandstorm - rain - inmunity to certain moves - being slow)
3.After the pokémon match, another must be played in elements, using at least 1/2 the cards of your element