Complex sentence: The Pokémon TFG is a collectible miniatures game like HeroClix created by the people who made the Pokémon TCG and based on Satoshi Tajiri's Pokémon media franchise.
Split into simpler sentences: The Pokémon TFG is a collectible miniatures game similar to HeroClix. It is made by the creators of Pokémon TCG and based on Satoshi Tajiri's Pokémon media franchise.