So your pokemon can get moves that don't match the pokemon? I could get a fire type with water moves or something? Is a fire pokemon with water moves advantaged against a pokemon that's weak to water, or is it only based on the pokemon's type? Can different pokemon get the same moves? Can you figure out what moves a defending pokemon has before it uses them?

Do I have to look up a chart somewhere to figure out which moves are good or does it sort of make sense, the way the elemental weaknesses/advantages do?