All of us water trainers should have a battle to decide who gets to use the water types. Because I think we have too much imo.
if you come in 1st,2nd,or 3th you can use water types but if you come in 4th, 5th, and 6th, you have to change your type
But its just a suggestion so its up to Honchkrow.. so i'll let him/her decide