I know what you are thinking. "What the Bulbasaur is an Eviolite?" That's what I thought too. Then I read into it a little. This tricky little item increases the defense and special defence of a Pokémon that is not fully evolved by 50%. In some instances, this doesn't mean much. In others, this can make certain Pokémon not only an even match for their fully evolved forms, but surpass them. Let's take a look at some of those instances.