Originally Posted by Fat wDro
Weather teams can take advantage of the item ability urge that can reactivate their weather summoning abilities.
Multi-battles with wonder launcher carries a lot of surprises because you can use items on a pokemon during the partnering pokemon's turn, and the pokemon who receives the item can still attack during the same turn. For example, you can use X Atk on Pokemon B during pokemon A's turn and Pokemon B can still use earthquake to damage everyone.
Yeah I agree so you don't have to switch out everytime you need a certain weather back. Also Item Drop is really helpful if your opponent uses Trick on you and your locked on a move because of Choice items.