First of all, i want to argue against dry skin. One of the major selling points of the fire typing is the sheer power it achieves in sun, dry skin takes this away from cap 3, which seems so wrong when we are looking to make the type a selling point. Next, i dislike drought, but i am not 100% opposed to it. I'm concerned that drought will become the selling point, and the typing will just be a slight aid to drought. Water absorb and storm drain are very similar, with the only real difference being in whether cap 3 is more offensive or defensive. However i want to comment that whereas with water absorb we merely achieve a stalemate with many water types, storm drain would let us switch into water type attacks and actually THREATEN the water type who launched that attack.